The potential groundwater remediation techniques that can be used to clean polluted groundwater are :
a)bioremediation
c)pump and treat
Groundwater is the purest form of water available on the whole earth.
There are the three main ways of remediating contaminated groundwater and they are:
Extraction & the Disposal Extraction then disposal of the contaminants.Pumping & the Treatment Pumping and treatment of the water.In-situ Treatment In-situ treatment including in-situ the chemical oxidation, air sparging and soil vapour extractionTo know more about remediation techniques, visit here:
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(Complete question) is:
which of the following are potential groundwater remediation techniques that can be used to clean polluted groundwater? (select all that apply)
a)bioremediation
b)biodegradation
c)pump and treatment
give an introduction to sustainable agriculture and mention benefits.
Answer:
Explanation:
Sustainable agriculture is incorporating initiatives into farming and agricultural work that allows farms to maintain their productivity and usefulness to society indefinitely. Throughout the process of sustainable agriculture, it is essential not to compromise production output.
Benefits:
Increase profitable farm income. Promote environmental stewardship. Enhance the quality of life for farm families and communities. Increase production for human food and fibre needs.It prevents pollution.Saves energy.Prevents soil erosion.Improves food production with less waste.
Which statement about agricultural production in Africa is false?
A.
Agricultural production has increased significantly since 1960.
B.
Population is increasing, so the demand for food is also increasing.
C.
Soil fertility and quality are decreasing.
D.
Limited investment has been made in mechanization on the continent.
The statement about agricultural production in Africa that is false is: A. Agricultural production has increased slightly since 1960.
What is agricultural production?Agricultural production can be defined as the process of planting and harvesting crops or plant.
The statement is false because agricultural production has expanded greatly in Africa or tripped in Africa. Agricultural production is essential which implies that without agriculture there will be no food as agriculture provides 99.9% of the food that we consumed.
Therefore the correct option is A.
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A population of beetles changing from yellow to brown and surviving better is an example of _____.
A population of beetles changing from yellow to brown and surviving better is an example of Natural Selection.
What is Natural Selection?
Natural selection is the variation in individual survival and procreation brought on by phenotypic variances. The evolution of a population's heritable features across generations is a fundamental mechanism of evolution. The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways. Because of this variety, some people have characteristics that suit their surroundings more than others.
Hence, A population of beetles changing from yellow to brown and surviving better is an example of Natural Selection because in an environment where more predators would feast on more green beetles than brown, this trait had a better chance of surviving.
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Under similar warm, moist climatic conditions, why would basalt and gabbro generally have higher chemical weathering rates than rhyolite and granite?.
Under similar warm, moist climatic conditions, basalt and gabbro generally have higher chemical weathering rates than rhyolite and granite because it contains ferromagnesian minerals.
What are ferromagnesian minerals and their correlation to the higher chemical weathering rates of basalt and gabbro?The ferromagnesian mineral is a type of mineral whose total proportion of iron and magnesium is high. Substances included in the ferromagnesian minerals are as follows:
OlivineAmphiboleBiotitePyroxeneThese minerals have a dark color.
Basalt stone has several mineral elements which are included in the ferromagnesian minerals, especially pyroxene, biotite, and olivine.
Gabbro stone also has ferromagnesian mineral elements, including pyroxene and olivine. The presence of the following ferromagnesian minerals causes basalt and gabbro stones to undergo oxidation and chemical breakdown more easily.
In conclusion, ferromagnesian minerals cause basalt and gabbro rocks to have higher chemical weathering rates because these types of minerals make rocks more susceptible to oxidation and chemical breakdown.
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Biodiversity describes the variety of life on earth. how does biodiversity contribute to the sustainability of an ecosystem?
The productivity of an ecosystem is increased by biodiversity because every species, no matter how minor, plays a crucial part. For instance, a wider variety of crops results from a greater number of plant species. A greater variety of species ensures the natural sustainability of all life.
The biosphere, or the entirety of life, is a thin membrane of organisms around the world that cannot be seen from the space shuttle's edge. Despite this, it is so intricate that the vast majority of its species—nearly 90%—remain unknown.
There are between 3.6 million to over 100 million species, according to estimates. Approximately 8.7 million marine animals are counted in the Census of Marine Life.
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help please..................................................
Answer:
Explanation:
The answer is C. Because that is a right angle and 45+45=90.
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Answer:
C is the right answer
Using Figure 12 and your own knowledge, explain how different landforms may be created by the
transport and deposition of sediment along the coast.
The formation of Landforms via way of means of shipping and deposition of sediment alongside the coast.
The required details about formation of Landforms is mentioned in below paragraph.
The formation of landform is due to longshore drift.
Waves bring eroded substances to the shore due to traction and saltation.The particles is deposited in a zigzag sample alongside the coast via way of means of the waves.The cloth is swashed alongside the coast at an attitude earlier than being backwashed at a proper attitude down the seaside via way of means of the waves.
The winning wind determines the swash attitude. Furthermore, the winning wind determines the form and boom of the sand spits.The deposition of sand, shingles, and pebbles on coast is generated via way of means of wave pastime and longshore drifts.Beaches which are lightly sloping are created via way of means of sturdy destructive waves that backwash greater particles farfar from the coast than up the seaside.Waves which are optimistic carry greater cloth to the shore than they wash away, ensuing in steeply sloping seashores.
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Compare and contrast sea-floor spreading and rifts.
The sea-floor spreading means a gradual addition of new oceanic crust in the ocean floor through a volcanic activity while the rifts occurs where there is splitting apart of a single tectonic plate into two or more tectonic plates separated by divergent plate boundaries
What is a Seafloor spreading?In geography, a seafloor spreading means a natural geologic process in which tectonic plates (large slabs of Earth's lithosphere) split apart from each other. The activities of seafloor spreading and other tectonic activity processes are the result of mantle convection as the mantle convection is the slow and churning motion of Earth’s mantle. The mantle convection currents carry heat from the lower mantle and core to the lithosphere and also “recycle” lithospheric materials back to the mantle.
Most time, the seafloor spreading occurs at the divergent plate boundaries. So, as the tectonic plates slowly move away from each other, heat from the mantle’s convection currents makes the crust more plastic and less dense. This led to bubbled-up magma which is cooled by frigid seawater to form igneous rock, this rock (basalt) becomes a new part of Earth’s crust known as Mid-Ocean Ridge.
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Would you expect a high rate of transpiration to occur in arid environment such as a desert area or a tropical rainforest area such as the amazon rainforest?Explain
Places with tropical rainforests, like the Amazon, have a higher rate
The rate of transpiration increases together with the temperature of the atmosphere. Water quickly evaporates from the surface of leaves at high temperatures. The rate of transpiration increases significantly in hot, dry air.
Plants release the water that is inside them as water vapor or moisture through a process called transpiration.
The ability to conserve and store water is one of the particular adaptations that plants that thrive in hot and dry settings have. In contrast, plants transpire more in places where water is a plentiful resource, like tropical rainforests.
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Summarize what occurs at Subduction Zones between an oceanic and continental plate. BE Specific in using the terms that apply to subduction zones.
Answer:
Subduction zones occur when one tectonic plate moves underneath another. The denser oceanic plate sinks beneath the lighter continental plate, causing the two plates to grind against each other. This can lead to the formation of mountains and volcanoes.
Subduction is the geological process where the collision of two tectonic plates at the convergent boundary leads to the denser plate sinking deeper into the mantle.
The zone where this process takes place is referred to as the subduction zone.
Usually, this process takes place at the convergent boundary of an oceanic and a continental tectonic plate. The oceanic plate being the denser of the two as well as the asthenosphere below sinks into the upper mantle.
The oceanic plate, coming in contact with the hot mantle starts to melt. This leads to magma rising up through the fissures and cracks which leads to volcanic eruptions. The lava (magma on the surface) cools down when coming in contact with the cool atmosphere.
Thus, when subduction takes place at the convergent boundary of an oceanic and a continental tectonic plate, the continental crust gets created while the oceanic crust is destroyed.
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an example of orographic clouds would be:
according to the model of the life cycle of a wave cyclone, the storm systetm is normally most intense as a(n)
According to the model of the life cycle of a wave cyclone, the storm system is normally most intense as a(n) mature cyclone.
What is the name for a big cyclonic storm system that develops in the middle latitudes?According to a model of a wave cyclone's life cycle, the storm system is often at its most severe while it is an extratropical cyclone.
Extratropical cyclones, also known as wave cyclones or midlatitude cyclones, are a particular category of storm system that develops at medium or high latitudes in
What is mature cyclone?The stage of tropical cyclone maturity, which may last for a week, when the areas of circulation grow while the surface pressure remains stable and there is no increase in the maximum wind speed.
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The characteristics of popular culture that distinguish or differentiate it from folk culture include all of the above so option D is correct.
How is popular culture different from folk culture?Popular culture is different from folk culture in a variety of ways and one of them is the people who adopt it. Popular culture is adopted by heterogeneous people which means that people of different ethnicities enjoy and adopt it. This is because popular culture is produced with the aim of appealing to a variety of people, consumers, and audiences in mind.
The origins of popular culture is often from MDCs or More Developed Countries in the Western Region of the world such as the United States, and the nations of Europe. Folk culture on the other hand, is adopted by a homogenous group of people, is produced to appeal to a certain group, and can originate anywhere, especially in less developed countries.
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The _________ is a direct measure of the distance from a seismic receiving station to the focus of a distant earthquake.
The time interval between the first P and S - wave arrivals is a direct measure of the distance from a seismic receiving station to the focus of a distant earthquake. The P wave, also known as the Primary wave or compressional wave, is a longitudinal wave and the fastest wave, with a speed of ±6 km/sec. Then the S wave usually called the second wave or shear wave is a transverse wave; moving at a speed of ±4 km/sec.
How are earthquakes recorded?An earthquake is a shaking that is felt on the surface of the earth due to the sudden withdrawal of energy from within which creates seismic waves. Earthquakes can be recorded by an instrument called a seismograph. Seismographs produce digital graphic recordings of ground motions caused by seismic waves. The digital recording is called a seismogram.
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What creates the strata in
sedimentary rocks?
A. the quick cooling of lava above the
earth's surface
B. the slow cooling of magma deep inside
the earth
C. the stratification of sediment layers near
the earth's surface
D. the subduction of one tectonic plate
below another
Answer: D is the lucky letter
Explanation: D. the subduction of one tectonic plate below another.
fire-dependent natural ecosystems include all but which of the following?
A. grasslands
B. seasonal tropical forests
C. some temperate-climate forests
D. the Mediterranean-climate shrublands
E. dense tropical rain forest
Fire-dependent natural ecosystems include all but dense tropical rainforests.
An ecosystem (or ecological device) consists of all the organisms and the physical environment with which they interact.: 458 of those biotic and abiotic components are related collectively thru nutrient cycles and strength flows. power enters the machine through photosynthesis and is included in plant tissue. by using feeding on plants and on each other, animals play a vital role in the motion of being counted and electricity through the device.
In addition, they affect the quantity of plant and microbial biomass present. by way of breaking down lifeless organic matter, decomposers launch carbon again into the atmosphere and facilitate nutrient cycling by converting vitamins stored in dead biomass returned to a shape that may be without difficulty utilized by vegetation and microbes.
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what is common for slate, schist, and gneiss? a) they are metamorphic and unfoliated. b) they are sedimentary and clastic. c) they are metamorphic and foliated. d) they are igneous and intrusive. e) they are igneous and extrusive.
The common for slate, schist, and gneiss is c) they are metamorphic and foliated. So, the correct option is (c).
Schist and Gneiss are the two different types of rocks that look remarkably like. The schist is type of medium-grade metamorphic rock that contains flat, sheet like grains in a pattern. Gneiss, on the other hand, is actually formed in the pattern of layers of sheet-like planar structures.
The problem with differentiating between the schist and gneiss is that they might look quite similar, especially to the someone who is not well-versed in geology. The schist is type of the medium-grade metamorphic rock that contains flat, sheet like grains in the pattern. Gneiss, on the other hand, is formed in the pattern of layers of the sheet-like planar structures.
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divergent plate boundaries are characteristic of a) sea-floor spreading centers. b) collision zones between plates. c) transform plate boundaries. d) all plate boundaries.
Divergent plate boundaries are characteristic of sea-floor spreading centers.
What is Divergent plate?In plate tectonics, a diverging plate boundary is a linear feature that exists between two tectonic plates moving away from each other. Divergent boundaries within continents initially create rifts and eventually rift valleys. The most active divergent plate boundaries occur between oceanic plates and exist as mid-ocean ridges.Current research suggests that complex convection currents within the Earth's mantle allow material to rise to the bottom of the lithosphere beneath each plate boundary where it diverges. This brings a tremendous amount of heat and pressure loss to the region, melting rock from the asthenosphere below the rift region and forming large flood basalts or lava flows. Each eruption occurs only part of the plate boundary at a time, but when it does, it fills the aperture gap as the two opposing plates move apart.To learn more about Divergent plate from the given link :
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help i have food for you please
What is the global weather phenomenon characterized by unusually warm ocean temperatures in the equatorial pacific?.
El Niño is the global weather phenomenon characterized by unusually warm ocean temperatures in the equatorial pacific.
In contrast to La Nina, which is defined by extremely cold ocean temperatures in the Equatorial Pacific, El Nino is characterised by unusually warm ocean temperatures. El Nino is an ocean-atmosphere system oscillation in the tropical Pacific that has significant effects on weather globally.
Among these effects are greater rainfall in Peru and the southern US, which has led to severe flooding, and drought in the West Pacific, which is occasionally linked to catastrophic brush fires in Australia. For the forecasting of short-term climate fluctuations (a few months to a year), observations of the tropical Pacific are thought to be crucial.
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Biotechnology has contributed all of the following to agriculture except __________.
Biotechnology has contributed all of the following to agriculture except shifting cultivation.
What is the meaning of Biotechnology?Basically, a biotechnology refers to the integration of natural sciences and engineering sciences in order to achieve the application of organisms, cells, parts there of and molecular analogues for products and services. As coined by Károly Ereky in 1919, its means the production of products from raw materials with the aid of living organisms.
Its encompasses a wide range of procedures for modifying living organisms to domestication of animals, cultivation of the plants and improvements to these through breeding programs that employ artificial selection and hybridization.
In this context, the Biotechnology has contributed to pesticides, synthetic fertilizers and bioengineered crops. Therefore, the Option C is correct.
Missing options A. pesticides B. synthetic fertilizers C. shifting cultivation D. bioengineered crops
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refers to all liquid fresh water located above ground.target 1 of 6 2. precipitation that infiltrates earth's surface and percolates downward becomes blank.target 2 of 6 3. a blank is a large body of water that has extensive areas of open water, some of which is too deep for photosynthetic life.target 3 of 6 4. a blank meanders across land and structures the landscape.target 4 of 6 5. a blank is the entire land area that supplies a river or stream with water from precipitation.target 5 of 6 6. a blank has water-saturated soil, shallow standing water, and ample vegetation.
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what is the aim of natural science
To reach verifiable results, natural scientists use data from experiments and observation. An attempt is being made to provide some order to the natural world.
What makes natural science the most significant field?The natural sciences unquestionably have made a significant contribution to knowledge as a whole. Research in this area has improved our knowledge of the motivations of humans, the evolution of our planet, and even the potential structure of the cosmos. Though not always valued as highly as they are now, natural sciences.The study of natural phenomena on earth and in the universe is the focus of natural science, which also predicts and investigates them. To reach verifiable results, natural scientists use data from experiments and observation. An attempt is being made to provide some order to the natural world.To learn more about Natural sciences refer to:
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which of the following are common hazards associated with hurricanes?
A. Inland flooding from heavy rains
B. Storm surges
C. Tornadoes
Answer: A or C
Explanation:
The major hazards associated with hurricanes are:
storm surge and storm tide.
heavy rainfall and inland flooding.
high winds.
rip currents.
tornadoes.
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Based on the available options the characteristics of popular culture that made it different from folk culture is that all the available options are true.
Popular Culture vs Folk CulturePopular Culture is a term used to describe the type of culture found among large, heterogeneous societies or people, which includes shared specific habits regardless of the differences and characteristics.
On the other hand, Folk Culture is a term that is used to describe the type of culture which is usually found among small, homogenous groups living in separated rural areas.
Another difference is that Popular Culture emerges or comes from More Developed Countries otherwise known as MDCs.
Also, Popular culture such as popular music is made for a variety of people, consumers, and audiences.
Hence, in this case, it is concluded that the correct answer is option D. "All of these are true."
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Only 200 Greater Bamboo Lemur exist currently. Scientists use artificial insemination to broaden the gene pool of this endangered species. This procedure is carried out in the natural habitats of this species. Which type of species conservation method is being used?
Assisted reproduction method is used to broaden the gene pool of the lemurs. As this procedure is carried out in the natural habitats of these species, it is known as in-situ conservation.
What is Assisted reproduction?
This definition includes any fertility procedures that handle either eggs or embryos as part of ART. ART methods often entail surgically removing eggs from a woman's ovaries, fertilizing them in a lab, and either putting them back into her body or giving them to another woman.
Note that In-situ conservation refers to the maintenance and recovery of a species' viable population in its original location as well as the conservation of a species in its natural habitat.
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See full question below
Only 200 Greater Bamboo Lemur exist currently. Scientists use artificial insemination to broaden the gene pool of this endangered species. This procedure is carried out in the natural habitats of this species. Which type of species conservation method is being used?
___________ method is used to broaden the gene pool of the lemurs. As this procedure is carried out in the natural habitats of these species, it is known as ________ conservation.
In 2017, 258 million international migrants were counted around the world. Identify the continent to which the highest percentage of international migrants relocate.
Asia welcomed 80 million international migrants in 2017, followed by Europe (78 million) and North America (70 million). A total of 43 million people, or 17% of the world's population, were located in Africa (25 million), Latin America and the Caribbean (10 million), and Oceania (8 million).
Throughout a large portion of American history, immigration has been a significant driver of population increase and cultural change. With 47 million immigrants as of 2015, the United States has the largest immigrant population in the world in terms of absolute numbers. This amounts to 14.4% of the US population and 19.1% of the 244 million immigrants who live abroad. Other nations with higher immigrant percentages include Australia (30%) and Canada (21.9%), for example.
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streams are characterized by flowing waters and are called lotic systems group of answer choices true false
Answer:
True. Lotic systems, for example streams, are characterized by flowing waters.
Which countries would appear to be the most powerful? why?
Answer:
The United States of America.
Explanation:
According to a 2020 study, the United States is the world's most powerful country (published in 2021). The United States has the largest economy in the world, with a GDP of $20.93 trillion in 2020, and the highest military spending, with $778 billion in 2020.