why and how do Volcanoes erupt after being dormant for a long period of time?

Answers

Answer 1

Answer:

Whether a volcano is actually dormant or not, is not actually predictable.

Volcanoes erupt when molten rock called magma rises to the surface. Magma is formed when the earth's mantle melts.

Melting may happen where tectonic plates are pulling apart or where one plate is pushed down under another.

Explanation:

I hope this helps you;)


Related Questions

what is all the words you can make from sellix
(ALL THE WORDS)
PRIZE AT THE END

Answers

Answer:

lexis

silex

lisle

sell

lies

isle

Explanation:

can i have a brainliest plz

Answer:

I'll comment so you can get your Brainliest

Explanation:

What is true of both earthquakes and volcanoes?.

Answers

They are both caused by the movement of tectonic plates

The true  about  earthquakes and volcanoes is that Both earthquakes and volcanoes are caused by the movement of tectonic plates.

Both earthquakes and volcanoes are regarded as a natural disaster, but they have somethings in common.

They are been caused by the movement of tectonic plates, and they can be harmful to the local environment.

They occur in  inland less frequently than in coastal areas.

It should be noted that Most earthquakes are caused by  the movement of magma.

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When Americans moved west to settle our country, they did this for many reasons. Identify one example of a push
factor and one example of a pull factor that may have encouraged Americans to make this journey. Write your answer
in at least two to three sentences.
Save and Exit
Next
Submit
Mark this and return

Answers

Answer:

Americans were “pushed” west for many reasons. Many Americans felt like they were missing job opportunities in eastern states. Others felt that they were treated unfairly, and many believed that there wasn’t enough land to meet their needs. They were also “pulled” to the west by factors like new land, plentiful resources, and a desire for adventure.

hope it helps you…

People in the United States felt "pushed" west because they were missing out on employment options in the eastern states. New land, and an abundance of resources, were additional elements that "pulled" them toward the west.

What is migration?

When people from one location move or transferred to another location in search of livelihood and seek better opportunities for the future to have financial stability in life along with security is considered migration.

Economical reasons, such as a lack of employment and economic opportunity, motivate people to leave their homes and relocate elsewhere, whereas pull factors draw migrants to new locations for bringing positive change in their lifestyle.

A poor standard of living and a shortage of food, land, or employment opportunities are some factors that cause individuals to leave their homeland. Immigrants may run into problems along the way as they attempt to move.

Learn more about Migration, here:

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Why didn’t the Europeans eat potatoes, tomatoes, or corn before the 15th century

Answers

Answer:

bcz they did not reach Europe until after the 15th century

Explanation:

how many earths can fit in the sun

Answers

Answer:

1.3 million

Explanation:

If you divide the volume of the sun by the volume of the Earth, you get that roughly 1.3 million Earths can fit inside the sun.

there has been multiple ice ages on earth. what causes ice ages?

Answers

The onset of an ice age is related to the Milankovitch cycles - where regular changes in the Earth's tilt and orbit combine to affect which areas on Earth get more or less solar radiation. When all these factors align so the northern hemisphere gets less solar radiation in summer, an ice age can be started.

Answer:

The variation of sunlight reaching Earth is one cause of ice ages. .

Explanation:

When less sunlight reaches the northern latitudes, temperatures drop and more water freezes into ice, starting an ice age.

When more sunlight reaches the northern latitudes, temperatures rise, ice sheets melt, and the ice age ends.

When magma cools _____, the crystals it forms are small. When magma cools _____, the crystals it forms are large.
quickly; slowly
slowly; quickly
slowly; very slowly
rapidly; very quickly

Answers

Answer:

Quickly; slowly

Explanation:

slower has more time to grow

~ Alderr

The population pyramids above represent two countries at different stages of the demographic transition and economic development.

Define the demographic transition model.
Identify demographic factors that influence the stage of development for Country A.
Identify demographic factors that influence the stage of development for Country B.
Define dependency ratio.
Identify one negative impact the dependency ratio can have on economic development.
Identify one positive impact the dependency ratio can have on economic development.
Explain how public policies are impacted by population demographics.

Answers

Answer:

Country A: Stage 2 with a high birth rate and a youthful population and is a developing country.

Country B: Stage 4 with a low birth rate and low death rate with an aging population. It is a developed country and there is a possible Stage 5.

Explanation:

I hope this helps!

Which piece of land doubled the size of the United States? Florida Purchase Louisiana Purchase Mexican Cession.

Answers

Answer:

Mexican Cession.

Explanation:

Well, first of all, the Louisiana Purchase and the Florida Purchase are both based in the U.S., so it would be impossible that it could be twice the size as the land in the U.S.

The Louisiana Purchase of 1803 to become part of U.S. territory doubled the size of the country

The Louisiana Purchase entails an acquisition of the Louisiana territory from Napoleonic France in the year 1803.

The Purchase brought into U.S. about 828,000 square miles of territory, thereby, doubling the size of the country.

In conclusion, the Louisiana Purchase of 1803 to become part of U.S. territory doubled the size of the country.

Hence, the Option B is correct.

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which features formed between south america and africa as the continents separated?

Answers

Answer:

The South Atlantic Ocean and a Mid-Ocean ridge

Due to the split of Gondwana, ancient land that used to be South America, Africa, India, and Australia, the ocean formed when the continents split. Also, the Ocean Ridge, aka the Atlantic Ridge is also found between the 2 continents.

Hope this helps!

Which of the following is NOT a Human factor that influences population distribution? 1 point A.Utilities
B. Job Opportunities
C. Infrastructure
D. Climate​

Answers

Answer: climate

Explanation:

Answer:

A.

Explanation:

Job opportunity's, Infrastructure, and climate can all have a great impact on where people settle down and where people live. Leaving the only stand out answer of A. Utilities.

what would happen if a planet stopped moving forward

Answers

Answer:

lol I D K yell

Explanation:

Why do New England and Southern accents seem most odd to Americans?

Answers

Answer:

Explanation:

Image result for Why do New England and Southern accents seem most odd to Americans?

General American

The idea that there is one accent that is the most neutrally American has been around for a long

time, and it is usually called “General American.” The term was coined in 1925 by the descriptive linguist George Philip Krapp as a way to describe the accent he thought was becoming the norm in the United States.

HOPE THAT HELP

How many municipality are there in Nepal ?name them​

Answers

There are 283 municipalities in Nepal. The capital city Kathmandu is a Metropolitan city and there are other five Metropolitan cities Bharatpur, Biratnagar, Pokhara, Lalitpur & Birganj. There are 11 Sub-metropolitan Cities and 276 Municipalities.

What time of year would a person find snow in the Far North

Answers

Answer:

snowfall ranges from mid to late October across far north america

Explanation:

which is one way that sinkholes can form?

A. Rivers overflow during a storm and wash away nearby land.

B. Groundwater dissolves the limestone and other rocks in the ground.

C. Rainwater flows away from a depression in the ground.

D. Tornadoes touch down and destroy tress and brush

Answers

your answer would be b :) i did the question <3

Answer:

B. Groundwater dissolves the limestone and other rocks in the ground.

Explanation:

Test approved

It's YOUR GURL BACK AT IT WITH ANOTHER QUESTION U > U
Mineral classes such as halides, sulfates, carbonates, oxides, and sulfides can contain all the following elements, except _____.
A.) fluorine
B.) oxygen
C.) sulfur
D.) silica
20 POINTS Y'ALL

Answers

Mineral classes such as halides, sulfates, carbonates, oxides, and sulfides can contain all the following elements, except oxygen

the answer is B

halides, sulfates, carbonates, oxides, and sulfides can contain all of the other answers except oxygen. The answer is B

Why do nations establish trade barriers?
A.
Trade barriers promote equality among nations, ensuring that everyone produces similar products.
B.
Trade barriers eliminate sanctions and embargoes between nations.
C.
Trade barriers limit the movement of people from one nation to another.
D.
Trade barriers protect a nation's interests by encouraging the production of homeland goods.

Answers

D, I seen it on another post up here

Answer:

The Answer is D!

Explanation:

How is coal extracted from mountaintop removal mines? (site 2).

Answers

The process of mountaintop removal mining involves extraction of coal seams from the mountain.

Basically, the mountaintop removal is a popular way of surface coal mining.

Mountaintop removal mining is a mining form done at the summit ridge of a mountain.

In conclusion, the process of mountaintop removal mining involves extraction of coal seams from the mountain either by removing the land, overburden, above the seams.

Read more about mountaintop removal:

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The steel and coal industries of which two countries did not help restore Europe's economic prosperity following World war 2?
A) Spain and Denmark.
B) France and West Germany.
C) Italy and Belgium.
D) Luxembourg and the Netherlands.

Answers

A) Spain and Denmark
B. Spain and Denmark

A large amount of world's gold is produced in

Answers

Answer:

china

Explanation:

China is the number one producer of gold in the world. The USGS estimates that China mined 455 metric tons of gold in 2016. Since gold began to be mined in the 1970s, gold production in China has rapidly increased.

[tex]Answer- [/tex]

China, Australia, Russia, and the United States are respectively the largest producers of gold in the world. Global production of gold reached approximately 3,200 metric tons in 2020. Production in China has increased from 320 metric tons in 2009 to an estimated 380 metric tons in 2020.

About 244,000 metric tons of gold has been discovered to date (187,000 metric tons historically produced plus current underground reserves of 57,000 metric tons). Most of that gold has come from just three countries: China, Australia, and South Africa. The United States ranked fourth in gold production in 2016.

how physical factors can influence population density

Answers

Answer: Physical factors that affect population density include water supply, climate, relief (shape of the land), vegetation, soils and availability of natural resources and energy. Human factors that affect population density include social, political and economic factors.

Explanation:

Help me please no one is helping this is due soon

Answers

Economic opportunities seems to be the driving factor for migration nowadays. An example of a group of migrants migrating from areas with a lack of economic opportunities to areas with more economic opportunities are Mexican immigrants seeking job opportunities.

Question 1 (1 point)
How did the peasants benefit from the decline of feudalism?
оа
b
They started to go to school
Made them extre:rely wealthy
They got higher wages
None of the above
с
d

Answers

Answer:

They started to go to school

Made them extre:rely wealthy

They got higher wages

None of the above

Which of the following planets in the Solar System takes shortest revolution?

Answers

Answer Jupiter as it is around 10 hours 9hrs 55 do be exact hope it helps

Explanation:

Answer:
Jupiter has the shortest, and Venus has the longest

10. In ordernumber the vocabulary from smallest to largest: Earth Moon Galaxy Sun Meteorite

Answers

Answer: Meteorite, Moon, Earth, Sun, Galaxy

Explanation:

Which layer of earth is liquid

Answers

Answer:

The Outer Core & Inner Mantle

Explanation:

The crust and the inner core are solid, whereas the outer core and inner mantle are liquid. The outer mantle is semi solid. The inner core is solid due to the massive pressure on it. Scientists theorize that the heat of the solid inner core is keeping the outer core in a semi-liquid state which allows the inner core to spin at a slightly different rate than the rest of the earth. This gives the earth its magnetic poles which diverts damaging cosmic rays from colliding with earth. The theories are the result of measurements during volcanic activity and sound waves. The mantle is a plastic solid of varying densities which allow convection currents to flow molten rock towards the earth's surface resulting in volcanic activity, tectonic plate movement, earthquakes, and movement of continents.

Have a great day! :D

Answer:

The Outer Core.

Explanation: I think this is the answer lol so ya 50 percent sure im right

Why is this part of a theory called 'continental drift'?

Answers

Answer:

It is called continental drift because the continents move.

Explanation:

Which question would a demographer most likely ask? Which ethnic groups live in this community? Which officials sit on the city’s school board? What is the price of gasoline and oil in this area? Which landforms and waterways make up this region?.

Answers

Most likely, the demographer would ask -- Which ethnic groups live in this community.

Who is demographer?

The demographer has termed as the person that looks for the demographic factors and the measures or the factors that are interconnected with the demography of the nation.

Demography is interconnected with the population of the nation and the demographer is also termed as the surveyor as it looks for the different aspects of the demography growth or the decline.

Therefore, the correct option is the first sentence.

Learn more about demographer here:

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Answer:

Which ethnic groups live in this community?

Explanation:

its A

For each ordered pair (x,y), determine whether it is a solution to the inequality 4x-6y>-18. (5,-3), (0,3), (-9,-2),(8,5)

Answers

The ordered pair that solves this equation is (0,3)

I would take a picture of my work, but i dont have phone sorry. :(

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