Which of the following are the key reference points in the grid system used to locate points on the surface of the earth?
The grid system used to locate points on the surface of the earth is a system of lines that divide the earth’s surface into a series of squares. It is also known as a geographic coordinate system or a geographic referencing system.
The grid system is used to map out an area and make it easier to locate points of interest on the earth’s surface. The key reference points in the grid system are as follows:
1. The Equator: The Equator is an imaginary line that runs around the middle of the earth and separates it into the Northern and Southern Hemispheres. It is the reference from which all other lines of latitude and longitude are measured.
2. The Prime Meridian: The Prime Meridian is the line that divides the earth into the Eastern and Western Hemispheres. It is the reference from which all other lines of longitude are measured.
3. The Lines of Latitude and Longitude: The lines of latitude and longitude are imaginary lines that run around the earth in a grid-like pattern. These lines intersect each other at right angles and are used to locate points on the earth’s surface.
4. The International Date Line: The International Date Line is an imaginary line located at 180 degrees longitude, which marks the transition from one day to the next. It is used to keep track of dates when crossing the International Date Line.
5. The Origin: The origin of the grid system is the point of intersection between the Equator and the Prime Meridian, which is located in the Gulf of Guinea off the coast of West Africa. This point is used to measure all other points on the earth’s surface.
These five points are the key reference points in the grid system used to locate points on the earth’s surface. All other lines of latitude and longitude are measured in relation to these five points. By understanding the grid system and these five reference points, it is possible to accurately measure and locate points on the earth’s surface.
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which of the following statements about meridians of longitude are correct?
The correct statements about meridians of longitude is:
Meridians of longitude the farthest apart at the equator.Meridians of longitude are the same length.Meridians of longitude connect the poles of the earth.What is meridians of longitude?Meridians, which are also known as lines of longitude, are fictitious lines that divide the globe. They measure the distance either east or west, running from pole to pole from north to south. The units of longitude are degrees, minutes, and seconds. The Prime Meridian, which separates the world's Eastern and Western Hemispheres, is located at longitude 0 degrees. The total number of longitudes is 360, made up of 179 western longitudes, 179 eastern longitudes, 1 GMT line, and 1 (0 °) longitude line.
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There are obvious problems with the American system: the influence of money on politics, the influence of an electoral system that is increasingly misaligned with "democratic" choices, but America seems incapable of reforming itself.
Answer:
It is true that the American political system has faced challenges and criticisms in recent years, including the influence of money on politics and concerns about the alignment of the electoral system with the will of the people. These issues have been the subject of ongoing debate and efforts to address them through reforms at the local, state, and federal levels.
There are also a number of structural and institutional factors that can make it difficult to enact significant reforms in the American system, including the separation of powers between different branches of government, the influence of special interest groups, and the role of political parties. Additionally, cultural and societal divisions can make it difficult to achieve consensus on controversial issues.
Despite these challenges, there have been examples of significant reform in the American political system, both in the past and in recent years. Some examples include the abolition of slavery, the extension of voting rights to marginalized groups, and the passage of campaign finance reform laws. It is important for individuals and organizations to continue to advocate for change and work towards a more equitable and representative political system.
2. Briefly explain the possibilism & determinism School Of thought in Geography in human environment relationships
Answer:
Possibilism is a school of thought in geography that holds that human beings have the ability to adapt and transform the environment to meet their needs and desires. According to this perspective, the human being is capable of taking advantage of the opportunities and resources of the environment and of creating solutions to the problems that he faces, regardless of the initial conditions or the limitations imposed by the environment.
On the other hand, determinism is a school of thought in geography that maintains that the environment is the main factor that determines the way in which the human being develops and acts. According to this perspective, the environment exerts a great influence on the human being and human societies, and the options and possibilities of human beings are limited by the conditions and resources available in the environment.
Which of these is ordinarily NOT considered a catastrophic disturbance?
O snowfall O tornado O volcanic eruption O earthquake
Which themes of geography are best illustrated in description below?
"Between 1900 and 1930, more than 1.5 million Americans moved from the
rural south to the northern states, which caused a swelling of various urban
populations in the north."
A. Location and place
B. Movement and region
C. Place and movement
D. Human-environment interaction and region
"Between 1900 and 1930, more than 1.5 million Americans moved from the rural south to the northern states, which caused a swelling of various urban populations in the north." because of the Human-environment interaction and. Thus option (D) is correct.
What is human-environment interaction?Human-environment interaction benefits humans because of the influence in diet, clothes, safety, and style of living.
People transform the environment for their purposes and receive benefits from it, this is known as Ecosystem Services.
These Ecosystem Services are necessary for the social well-being and combine the requirement of sources like water, wood, food, energy, knowledge, area for agriculture and various other facilities.
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FILL IN THE BLANK if the wind speed averages 11 mph on ashley hill and 12 mph on genevie hill, then a turbine operating on genevie hill could, in theory, generate about _____ % more electricity than a turbine on ashley hill.
A turbine running on Genevieve hill might theoretically produce roughly 30% more power than a turbine operating on Ashley hill if the wind speed is on average 12 mph on Genevieve hill and 11 mph on Ashley hill.
For wind turbines to start spinning and producing power, there must be a minimum wind speed (often 12–14 km/h). Strong winds are required for full-capacity generation (50–60 km/h).
Even a light breeze causes the blades to rotate, releasing kinetic energy. This causes the shaft in the nacelle to revolve as well, and a generator inside the nacelle transforms the kinetic energy of the rotating blades into electrical energy.
A typical onshore wind turbine may generate between 2 and 3 megawatts (MW), or more than 6 million kilowatt hours (Kwh), of power annually. That will be adequate to satisfy the electrical needs of around 1,500 typical families.
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Which of the following was an important event for Islam?
A. The Diaspora of Islam
B. Schisms between orthodox churches
C. The Golden Age of Islam
D. Covenant of Rome converting the empire to Islam
Answer:
D it’s the answer
Which of the following best explains the significant difference in North Africa's demographic data from the rest of the African continent and North Africa's closer similarity to global demographic data?A. North African improvements in nutrition, health care, and sanitation have reduced birth and death rates as well as improved life expectancies over time.B. North African declines in nutrition, health care, and sanitation have resulted in higher birth rates but have not affected death rates or life expectancies over time.C. North African investment in transportation and energy sectors has reduced birth and death rates as well as improved life expectancies over time.D. Foreign investment in North Africa's transportation and energy sectors has resulted in higher birth rates but have not affected death rates or life expectancies over time.E. North African business losses in transportation and energy sectors have resulted in higher birth rates but have not affected death rates or life expectancies over time.
The correct answer is A. North African improvements in nutrition, health care, and sanitation have reduced birth and death rates as well as improved life expectancies over time. North Africa has a significantly different demographic data than the rest of the African continent, and it is more similar to the global demographic data.
This is due to the fact that North African countries have invested more in the fields of nutrition, health care, and sanitation than other African countries. This investment has resulted in a decrease in birth and death rates, as well as an increase in life expectancies.
Nutrition has a major impact on the health of a population. By improving the quality and availability of food, North African countries have been able to reduce the incidence of malnutrition and associated health problems. In addition, better access to health care and sanitation services have enabled people to live longer, healthier lives. Moreover, improved sanitation practices have helped to reduce the spread of infectious diseases and other health problems.
The improved nutrition, health care, and sanitation have all contributed to a decrease in the birth rate and an increase in the life expectancy of the population. This has resulted in North Africa’s demographic data being more similar to the global demographic data.
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Which of the following differences between the North and the South during the Civil War is depicted in the graph? A. The South engaged in more international trade than the North.
B. The South relied more on plantation agriculture than the North.
C. The North had less developed transportation infrastructure than the South.
D. The North had fewer people available for labor and the military than the South.
A difference between the North and the South during the Civil War was that B. The South relied more on plantation agriculture than the North.
How were the North and South difference in the Civil War ?With outstanding strength at the outset of the war, the North. It had around 22 million people versus 9 million in the South. In terms of wealth and scientific advancement, the North was superior to the South. The majority of the nation's banks and almost 90% of its manufacturing were located in the North.
Geographically, the North had benefits as well. In order to feed the troops, it had more farmland than the South. Most of the nation's iron, coal, copper, and gold were found on its soil. Because it controlled the oceans, the North was able to move troops and supplies anywhere they were required thanks to its 21,000 miles of railroad track.
Additionally, the South relied more on plantation agriculture than the North did.
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* Chalk deposits left by the Western Interior Seaway during this period formed the Smoky Hills Chalk in America, and the Dover Cliffs chalk in Europe was also formed at the same time
* eruption of the Deccan traps may have contributed to the end of this geologic period, during which rudists were the most important reef-builders in the Tethys Ocean
* White Cliffs of Dover formed during this period, whose characteristic chalk deposits give it its name, and the Chicxulub
* Coccoliths formed the chalk beds that name this period of time.
* Alvarez hypothesis
uses shocked quartz and iridium concentration to explain how this period of time ended.
spread of () flowering plants which first appeared in this period, whose geologic
strata ends at the K-T boundary
* Placental species coexisted with dinosaurs during, for 10 points,
what last period of the Mesozoic era whose dinosaur species included T-rex?
* Pierre Shale are two formations dating from this period, during which the Tethys Ocean became a shallow sea
* Laramide orogeny [aw-RAH-jeh-nee] began lifting the Rocky Mountains in this period that also saw the evolution of the first mammals and flowering plants
* This period closed with the eruption of the Deccan Traps in India, which may be related to an impact that resulted in a thin layer of iridium forming between this period and the one that follows it. The Alvarezes posited that the KT boundary marks the stratigraphic border between this period and the Tertiary.
* name this period in which the T. Rex lived, the last period of the Mesozoic era that probably ended with a big meteor impact at Chixtulub.
* Germany's Maastricht Formation contains fossils from this geologic period, which saw the split of Africa and South America
* geologically significant both for the large amounts of chalk formed during this period and for a layer of iridium known as the K-T boundary, which is believed to have been deposited by an asteroid
* final period of the Mesozoic Era, whose end saw the mass extinction of the dinosaurs.
* Berriasian Age to the Maastrichtian Age
* first ap- pearance of ants, butterflies, and flowering plants. Though life generally increased throughout its eighty million years, its end was marked by many extinctions, especially for large land animals.
* age that followed the Jurassic Age, the last part of the Mesozoic Era
CRETACEOUS PERIOD is the era that followed the Jurassic Age and was the final section of the Mesozoic Era. A warm, rainy environment supported lush flora and plentiful life throughout the Jurassic period.
For dinosaurs, the Jurassic Age was a golden age that lasted 180 million years. Sauropod herbivores (like the 87-foot [27-meter] long Diplodocus) and carnivores (like the 35-foot [11-meter] long Allosaurus) arose. Imagine sprinting as quickly as you can to get an idea of how big these beasts were. The Jurassic Period was the second of three Mesozoic Era eras. It lasted from 201.3 million to 145 million years ago and followed the Triassic Period (251.9 million to 201.3 million years ago) before being supplanted by the Cretaceous Period (145 million to 66 million years ago).
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the causes of cumbrian flood 2009
Heavy rains hit Cumbria in late November 2009, sending flash floods through the towns of Cockermouth and Workington.
Briefly describe the occurrence of the 2009 Cambrian floods.Extremely prolonged rains on Wednesday 18th and Thursday 19th November caused severe flooding in parts of the Lake District. Some highlands received more than 400 mm of rain in 72 hours, and Seathwaite, Cumbria received 316 mm of rain in 24 hours. Below are some of the reported causes of flooding.
Warm air from the mid-Atlantic moved toward land due to prevailing winds.Warm air was being pushed up by the Cambrian Mountains.As the air cooled, it condensed into heavy rain. Over Cumbria the front held up.The rain that fell flowed into the Derwent and Cocker rivers.Located at the confluence of the rivers, Cockermouth suffered massive flooding as a result.To know more about flash floods, visit:
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The complete question is as follows:
What were the causes of Cumbrian flood 2009?
Part B
Complete the proof of the vertical angles theorem.
Given: Lines AB and CD intersect at point E.
Prove: Angle AED is congruent to angle BEC.
Enter the missing statements and reasons in the table.
BIVX X₂ 14pt
Statement
ZAED and ZDEB are a linear pair.
m/DEB + m2BEC = 180°
mZAED + m2DEB = m/DEB +mZBEC
Space used (includes formatting):
接近中间 my
Reason
given
Linear pairs are supplementary.
definition of linear pair
Linear pairs are supplementary.
subtraction property of equality
definition of congruency
According to the Vertical Angles Theorem, two crossing lines' opposing (vertical) angles must be equivalent.
Define vertical angles.Each pair of opposite angles formed by two crossing lines are referred to as a vertical angle.
Proving ∠1 ≅∠3 and ∠2 ≅ ∠4:
(1) m∠1 + m∠2 = 180° // straight line measures 180°
(2) m∠3 + m∠2 = 180° // straight line measures 180
(3) m∠1 + m∠2 = m∠3 + m∠2 // transitive property of equality, as both left-hand sides of the equation sum up to the same value (180° )
(4) m∠1 = m∠3 // subtraction property of equality (subtracted m∠2 from both sides)
(5) ∠1 ≅ ∠3 // definition of congruent angles
Similarly, for ∠2 ≅∠4:
(1) m∠3 + m∠2 = 180° // straight line measures 180°
(2) m∠3 + m∠4 = 180° // straight line measures 180°
(3) m∠3 + m∠2 = m∠3 + m∠4 // transitive property of equality, as both left hand sides of the equation sum up to the same value (180°)
(4) m∠2 = m∠4 // subtraction property of equality (subtracted m∠3 from both sides)
(5) ∠2 ≅ ∠4 // definition of congruent angle
And thus, we have proven the theorem.
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Please help. Find the approximate latitude and longitude of the American territory the mainland of which includes the contiguous 48 states. Take into consideration the extreme points.
Answer:
The mainland of the United States, which includes the contiguous 48 states, stretches from the extreme point of westernmost Alaska to the extreme point of easternmost Maine. The approximate latitude and longitude of these extreme points are:
Westernmost Alaska: 71.38° N, 179.21° W
Easternmost Maine: 45.29° N, 67.01° W
The latitude of the mainland of the United States ranges from 71.38° N at its westernmost point to 45.29° N at its easternmost point. The longitude of the mainland ranges from 179.21° W at its westernmost point to 67.01° W at its easternmost point.
Overall, the mainland of the United States covers a wide range of latitudes and longitudes, and its extreme points are located at opposite ends of the country.
3 facts about Ladakh Desert and pls tell how to mark as brainliest
Above Shown is How to mark Brainlist.
Answer:
It is The land of the Rare twin-humped Bactrian Camels.It has the Highest Natural Ice Hockey rink.Ladakh has the Largest Telescope in Asia.Answer: Ladakh is a cold desert that in the Great Himalayas with extremely low temperatures with very less vegetation. Most of Ladakh is brown and rugged which is very different from the usual hill stations that are always lush green. But even after being a dessert, Ladakh is home to over 225 Species of Birds.
Explanation:
1. Locations for Stargazing
Second Highest Optical Telescope in The World
Situated at an altitude of 4,500 meters, the Indian Astronomical Observatory at Hanle is the second-highest optical telescope in the world. Far away from the polluted urban cities and on such high altitude, the place had to be on top of the list of the best places for stargazing in India. The air is so dry and clear that the brightness of the Milky Way is spectacular. You could even photograph from the famous Pangong Lake and see the spectacular view in the reflection of the lake and in the brightest night sky lit solely by the light of stars. Tha village of Nubra is quite famous for the same too.
2. Cross Steep Bridges Over Cold Gushing River Water
The Highest Bridge In The World
Right between the Suru River and Dras River, the Bailey bridge was constructed in 1982 by the Indian Army in the rough Himalayan Ranges. This 30 meter long bridge is the highest bridge in the world at a height of 5,602 meters above sea level. It is a temporary bridge made up of lattice steel by prefabricated parts. Such bridges have great application in Military.
3. Difficult Yet Peaceful Living Arrangements
Highest Settlement In India
A large portion of the area between the Suru Valley and Zanskar Valley which is surrounded by the Himalayas and Zanskar Ranges is rough and largely inhabited. The main area that is inhabited is Rangdum. But after crossing Rangdum, at the height of 4,400 m at Pensi-la which is also the gateway to Zanskar, is India's Highest Settlement! A life at such a height has to be difficult and yet the most peaceful when amidst a beauty like Leh-Ladakh
Hope this was helpful
is the result of forces that transports heated material to or toward the surface of the earth. (enter only one word per blank.)
volcanism is the result of forces that transports heated material to or toward the surface of the earth.
What are the definition and causes of volcanism?The process of molten rock erupting to the surface of the Earth is known as volcanism. In addition to being connected to tectonic movements and a component of the rock cycle, volcanism is a result of the heat generated by the planet's interior. When hot lava touches the Earth's surface, volcanic eruptions take place. The tectonic plates are displacing one another along constructive plate boundaries. To provide a fresh passageway for hot magma rising to the surface, the Earth's crust is split apart. These conditions can occasionally produce volcanoes; Iceland is one example.
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Question: The hours the restaurant is open look confusing from an American perspective. Translate these hours into American timekeeping. What are the hours this the restaurant is open?
Please provide an answer! I attached a screenshot of the restaurant’s opening hours. This restaurant is in Portugal.
Thank you! :)
Answer:
Here is a translation of the restaurant's hours into American timekeeping:
Monday: Closed
Tuesday: 12:00 PM - 3:00 PM, 7:00 PM - 10:00 PM
Wednesday: 12:00 PM - 3:00 PM, 7:00 PM - 10:00 PM
Thursday: 12:00 PM - 3:00 PM, 7:00 PM - 10:00 PM
Friday: 12:00 PM - 3:00 PM, 7:00 PM - 10:00 PM
Saturday: 12:00 PM - 3:00 PM, 7:00 PM - 10:00 PM
Sunday: Closed
Please note that these hours are in the time zone of Portugal, which is on Western European Time (WET). If you are in a different time zone, you will need to adjust the hours accordingly to find out when the restaurant is open.
Explanation:
The photograph shows a small waterfall located on the tug hill Plateau. rock fragments that are tumbled, and carried over long distances by this stream are most likely becoming what?
Sedimentary rocks are the types of rocks that are created by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation.
Which rock layer formed from the deposition of land derived sediments?The mechanisms that lead to the placement of these particles are collectively referred to as sedimentation. Sediment is the collective name for the little fragments that make up sedimentary rocks. It can be made up of biological or geological waste (organic matter). The geological debris resulted from the weathering and erosion of pre-existing rocks or from the solidification of molten lava blobs released by volcanoes. Water, wind, ice, or mass movement—collectively referred to as "agents of denudation"—transport the geological debris to the site of deposition.The remains and pieces of dead aquatic species, primarily their shells, as well as their fecal material, suspended in water, progressively accumulated on the bottom of bodies of water to create biological detritus (marine snow). Sedimentation can also happen when dissolved minerals precipitate out of aqueous solutions.To Learn more About Sedimentary rocks refer To:
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Which of the following is incorrectly matched? A. cut bank - outer portion of a stream meander
B. point bar - area of substantial erosion
C. aggradation - sediment accumulation in the stream channel
D. braided stream - maze of interconnected channels
The answer that is incorrectly matched is C. Aggradation is the process by which sediment is deposited on the bed or banks of a stream, leading to an increase in the elevation of the stream bed. Therefore, aggradation is not an area of erosion, but rather an area of sediment accumulation.
A cut bank is an outer portion of a stream meander, which is an area of substantial erosion. The erosive forces of the stream cause the bank to become steep and undercut, resulting in a bluff or cut bank.
A point bar is an area of deposition, where the stream slows down and deposits sediment. Point bars are usually found on the inside of meanders, opposite of the cut bank. Point bars are often characterized by having a gentle slope and sediment accumulations.
A braided stream is a stream with a maze of interconnected channels. These channels are formed as sediment is deposited in the stream and the stream splits into multiple channels as it flows. Braided streams are often found in areas with high sediment loads, where the sediment is deposited faster than it can be moved downstream.
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TRUE/FALSE. a major environmental problem caused by using the agricultural practice of tilling is responses eutrophication from excessive fertilizer use eutrophication from excessive fertilizer use ozone depletion from fossil fuel use ozone depletion from fossil fuel use intercropping by traditional farmers intercropping by traditional farmers compaction of soil from adding compost
Significant environmental problems caused by the agricultural practice of tilling include soil compaction from compost addition, intercropping by conventional farmers, eutrophication from excessive fertilizer usage, and ozone depletion from fossil fuel consumption. This statement is true.
Tillage causes soil compaction, which is a serious environmental problem. Tilling is the process of turning the soil over before planting a crop. Soil erosion is the main environmental problem caused by tilling.
Tilling systems have an effect on soil's physical, chemical, and hydraulic qualities as well as crop yield. Tilling alters the top soil layer, alters how soil porosity is preserved, and decreases soil organic matter.
When soil particles are packed tightly together or lumped together, compaction occurs. This results in the soil having fewer pores, which reduces water penetration and soil aeration. Soil compaction is a significant environmental issue brought on by tillage.
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12. Which of the following countries was the first to go through the Demographic Transition Model?
a. United States b. Russia c. Spain d. England
Use properties to rewrite the given equation. Which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p? Select two options. 2.3p – 10.1 = 6.4p – 4 2.3p – 10.1 = 6.49p – 4 230p – 1010 = 650p – 400 – p 23p – 101 = 65p – 40 – p 2.3p – 14.1 = 6.4p – 4
The properties of equality can be used to rewrite the equations and the two equations that have the same solution as the given equation are;
B. 2.3p - 10.1 = 6.49 - p - 4
C. 230p - 1010 = 650p - 400 - p
Which equations have the same solution?The given equation is; 2.3·p - 10.1 = 6.5·p - 4 - 0.01·p
Simplifying the above equation by collecting like terms gives;
2.3·p - 10.1 = 6.5·p - 0.01·p - 4 = 6.49·p - 4
2.3·p - 10.1 = 6.49·p - 4
Both sides of an equation will remain equal, when both sides are multiplied by the same amount. Multiplying both sides of the original equation by 100 gives the same solution as follows;
100 × (2.3·p - 10.1) = 100 × (6.5·p - 4 - 0.01·p)
230·p - 1010 = 650·p - 400 - p
The correct options are B and C.
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Rank the following steps describing how a clastic sedimentary rock forms from its pre-existing parent rock. (5 items) (Drag and drop into the appropriate area). weathering, lithification, deposition, transportation, erosion
Weathering, erosion, transportation, deposition, and lithification are the five steps in the formation of a clastic sedimentary rock from its pre-existing parent rock.
Weathering is the first step in the process of clastic sedimentary rock formation. Weathering is the breakdown of the parent rock into smaller pieces due to the action of wind, water, and temperature changes.
Erosion is the second step in the process of clastic sedimentary rock formation. Erosion is the process by which the smaller pieces of the parent rock are removed from the surface and transported to other locations due to the action of wind, water, and ice.
Transportation is the third step in the process of clastic sedimentary rock formation. Transportation involves the movement of the smaller pieces of the parent rock from one location to another.
Deposition is the fourth step in the process of clastic sedimentary rock formation. Deposition is the process of the smaller pieces of the parent rock being deposited in a new location.
Lithification is the fifth and final step in the process of clastic sedimentary rock formation. Lithification is the process of the smaller pieces of the parent rock being compacted and cemented together to form a solid rock.
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The most conspicuous features on the surface of the Sun are dark areas called ________.
a. helium lines
b. granules
c. spicules
d. sunspots
e. flares
The most conspicuous features on the surface of the Sun are dark areas called sunspots.
Sunspots are districts on the Sun's photosphere that seem hazier than the encompassing regions on the noticeable sun powered plate because of decreased surface temperature related with groupings of attractive field motion and serious attractive action on the Sun. They typically form pairs with opposing magnetic polarities.
What do the dark regions on the surface of the Sun go by?On the Sun's surface, dark regions are called sunspots. Because they are cooler than other areas of the Sun's surface, they appear dark. The temperature of a sunspot is still exceptionally hot however — around 6,500 degrees Fahrenheit!
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How is biodiversity related to the 3 thermal zones?
ayuda por favor
The total number of species found in the temperature zone of a specific location is a standard technique to quantify biodiversity; the warmer the area, the more species are there.
How does temperature affect biodiversity?Living things are distributed according to temperature. The ideal temperature encourages variety. The nature of species interactions may change as a result of shifting resource requirements and/or absorption rates as a result of rising temperatures. Thus, through modifying species interactions and complementarity effects, warming may also change how ecosystem functioning is impacted by biodiversity loss.
Most biodiversity is found in tropical locations, which are also warm all year round. Less biodiversity can be found in temperate areas because they have chilly winters and pleasant summers. Few species are able to thrive in the frigid zone, which results in relatively low biodiversity.
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identify and discuss the major topographical units of Ethiopia and its sub units?
Much of the Ethiopian landmass is part of the East African Rift Plateau. Ethiopia has a general elevation ranging from 1,500 to 3,000 meters above sea level. Interspersed on the landscape are higher mountain ranges and cratered cones, the highest of which, at 4,620 meters, is
. The northernmost part of the plateau is Ethiopia's historical core and is the location of the ancient kingdom of Aksum. The national capital of Addis Ababa ("New Flower") is located in the center of the country on the edge of the central plateau.
Millennia of erosion have produced steep valleys, in places 1,600 meters deep and several kilometers wide. In these valleys flow rapid streams unsuitable for navigation but possessing potential as sources of hydroelectric power and water for irrigation.
The highlands that comprise much of the country are often referred to as the Ethiopian Plateau and are usually thought of as divided into northern and southern parts. In a strict geographical sense, however, they are bisected by the Great Rift Valley into the northwestern highlands and the southeastern highlands, each with associated lowlands. The northwestern highlands are considerably more extensive and rugged and are divided into northern and southern sections by the valley of the Abay (Blue Nile).
North of Addis Ababa, the surface of the plateau is interspersed with towering mountains and deep chasms that create a variety of physiography, climate, and indigenous vegetation. The plateau also contains mountain ranges such as the Chercher and Aranna. Given the rugged nature of these mountains and the surrounding tableland, foreigners receive a false impression of the country's topography when Ethiopians refer to the landform as a plateau. Few of these peaks' surfaces are flat except for a scattering of level-topped mountains known to Ethiopians as ambas.
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Which of the following is the best method for preventing soil erosion in an agricultural area?
(A) Slash-and-burn agriculture
(B) Integrated pest management
(C) Monocrop farming
(D) Terrace farming
Answer: Terrace Farming is the best method to prevent soil erosion in an agricultural area. Thus, it is Option (D).
Explanation: Terrace farming refers to farming in which steeply sloped surface-like hills (higher altitudes) are cut into flat layers, resembling a series of steps on which various crops are grown. Rainfall takes soil with it, leading to erosion. Terrace farming mitigates the effects of erosion by slowing water runoff and trapping it in individual layers along the incline.
Slash-and-burn agriculture refers to the clearing of wild or forested land and the burning of any remaining vegetation. This deforestation causes the soil to erode since there is no vegetation left to hold it.
Integrated Pest Management (IPM) is a sustainable, science-based, decision-making process that combines biological, cultural, physical, and chemical tools to identify, manage and reduce risk from pests and pest management tools and strategies in a way that minimizes overall economic, health, and environmental risks.
Monocropping is the agricultural practice of growing a single crop year after year on the same land, in the absence of rotation through other crops, or growing multiple crops on the same land, which is known as polyculture.
Match the following gem groups with one of their specific gem varieties.
Alexandrite
Labradorite
Maxixe
Tanzanite
Ruby
Peridot
Blister
Ametrine
Verdelite
Pyrope
OPTIONS:
Corundum Quartz Beryl Chrysoberyl Tourmaline Pearls Zoisite Plagioclase Olivine Garnet
The match gem groups is Alexandrite to Chrysoberyl, Labradorite to Plagioclase, Maxixe to Beryl, Tanzanite to Zoisite, Ruby to Corundum, Peridot to Olivine, Blister to Pearl, Ametrine to Quartz, Verdelite to Tourmaline, and Pyrope to Garnet.
For Alexandrite it Chrysoberyl because consists of aluminate of beryllium.
For Labradorite it Plagioclase because it consists of tecto silicate mineral.
For Maxixe it Beryl because it consists of beryllium aluminium silicates that in sedimentary and igneous rocks.
For Tanzanite it Zoisite because it consists calcium aluminium hydroxy sorosilicate in nature.
For Ruby it Corundum because it consists of aluminium oxides.
For Peridot it Olivine because it consists ferromagnesium silicate mineral.
For Blister it Pearl because it consists of calcium carbonates.
For Ametrine it Quartz because it consists of silicate mineral.
For Verdelite it Tourmaline because it consists of borosilicates.
For Pyrope it Garnet because it consists of sole mineral that have most ancient and abundant silicate mineral.
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warm air and cool air . group of answer choices expands and rises; contracts and sinks contracts and rises; expands and sinks expands and sinks, expands and rises expands and rises: expands and sinks
Cool air constricts and sinks, while warm air expands and rises. The right response in this case is option A.
The molecules are separating as they heat up and travel more quickly. As a result, air expands when heated and shrinks when it is cooled, like most other things. The air is less dense than the surrounding material because there is more space between the molecules, which causes the heated air to float higher.
When the air gets cooler, the reverse takes place. The air bubbles shrink, becoming denser and sinking because their weight now occupies a smaller volume. This may occur if air particles travel away from the heat source; they may have climbed very high, relocated to a location over a cold lake, or shifted to an area under partial shade.
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what is difference between traditional map and modern map
Answer:
The difference is made not only by the material used for making maps as the earlier maps were on bark, animal skins and leaves or plank of wood. Later on paper and cloth was used. Now-a-days we have digital version.