How do subduction zones lead to the formation of volcanic activity?

Answers

Answer 1

Answer:

Thick layers of sediment may accumulate in the trench, and these and the subducting plate rocks contain water that subduction transports to depth, which at higher temperatures and pressures enables melting to occur and 'magmas' to form. The hot buoyant magma rises up to the surface, forming chains of volcanoes.


Related Questions

Continental crust is younger than oceanic crust. Please select the best answer from the choices provided T F.

Answers

Answer:

It is, and it is not. To be more accurate, continental crusts are more buoyant than oceanic crusts. This is why no matter what, subduction of continental plates is not possible.

The statement that the continental crust is younger than the oceanic crust is completely FALSE. This is because the continental crust is considered to be as old as the Earth itself.

The continental crust is referred to as the portion of the earth covered under land, and that of the oceanic crust is considered to be a part of the area of the earth covered under Oceans.

Continental Crust

The chemical composition of the oceanic crust is different from that of the continental crust, which is a strong evidence to show that the continental crust is older than the oceanic crust.

The destruction of continental crusts are impossible, and there is often a recycle experienced in the process of subduction. This concludes that such crusts might be as the same as the age of Earth.

However, sometimes there is a formation of newer continental crust over oceanic crust due to formation of rock resulted due to passage of time and only these newer crusts are younger to oceanic crusts.

Hence, it can be concluded that the statement above that Continental crust is younger than the oceanic crust is FALSE.

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5. Why was the Berlin Wall built?
O
to imprison Germany's Jews, Poles, Gypsies, and Slavs
o
to stop the East German government from adopting communism
o
to protect Berlin from invasion by the Soviet Union
O
to prevent East Germans from escaping to West Germany

Answers

Answer:

To Prevent East Germans from escaping to west Germany .

The Berlin Wall was built by the German Democratic Republic during the Cold War to prevent its population from escaping Soviet-controlled East Berlin to West Berlin, which was controlled by the major Western Allies.

Explanation:

I hope this helps you !!

what kind of boundary does seafloor spreading occur at?

Answers

Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.

hope this helps!

Answer:

divergent plate boundaries

Explanation:

Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.

how long do we have until climate change is irreversible

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Answer:

it would take over one thousand years to disintegrate completely and potentially thousands of year longer if we manage to cut emissions quickly.

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In which regions of the world does the UN focus most of its attention on when attempting to separate
warring groups?

Answers

Answer:

Explanation:

Maintain International Peace and Security.

Protect Human Rights.

Deliver Humanitarian Aid.

Support Sustainable Development and Climate Action.

Uphold International Law.

What two Ideas do geographers use when studying movement?

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sorry but

i am just in class 6

Identify each type of rocks in map

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Answer:

where is the map?

and which type of map you want me to identify the rocks on?

It should be noted that the three types of rocks are igneous, sedimentary, and the metamorphic rock.

Types of rocks.

Your information is incomplete. Therefore, an overview will be given. It should be noted that rocks are a solid mass of geological material.

There are three main types of rocks and they are igneous, sedimentary, and the metamorphic rock.

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Scientists are studying hurricanes to determine the number of hurricanes in the past 50 years that have caused greater than $1 million in damages. Which best describes the population? hurricanes hurricanes that caused greater than $1 million in damages scientists scientists participating in the research.

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Answer:

im pretty sure its b but it could be wrong Step-by-step explanation:

Answer:

B

Explanation:

50 Points HELP!!!!!!!!!!!!!!!!!!!!!!
Which of the following evidence supports the theory of plate tectonics? (7 points)
A. The age of rocks and mountains on the edge of neighboring continents varies.
B. Fossils from the same species are found on only one continent.
C. Iron-rich, molten magma rocks no longer align to Earth’s poles in many locations.
D. Grooves created from glacier movement travel in opposite directions on each continent.

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Answer:

C

Explanation:

Hope this helped you!!

what three elements make up most of the atmosphere?

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Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.

mount kosciuszko is the tallest mountain in which country?

Answers

It is the tallest mountain in Australia.

where do the majoraty of australians live

Answers

Answer:

Australia

Explanation:

Answer:

The Eastern Mainland States

Explanation:

Around 80 percent of Australians live in The Eastern Mainland States because it contains areas such as Wales, Victoria, and Queensland.

what happens when weathering and erosion work together?

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Weathering is the mechanical and chemical hammer that breaks down and sculpts the rocks. Erosion transports the fragments away. Working together they create and reveal marvels of nature from tumbling boulders high in the mountains to sandstone arches in the parched desert to polished cliffs braced against violent seas.

SEMESTER EXAM QUESTION HELP!!! : Select the region with the highest elevation

a.Mountains and Basins
b.Great Plains
c.North Central Plains
d.Coastal Plains

Answers

Answer:

l think mountain and basins

How did the caddos impacted in Texas?

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Answer:

They lived in tall, grass-covered houses in large settlements with highly structured social, religious and political systems. The Caddos raised corn, beans, squash and other crops. They also hunted the bear and deer of East Texas and headed west for annual buffalo hunts.

Explanation:

If I’m wrong, I’m sorry. If I’m right, mark me brainlest!

What does this chart reveal about education in South Africa? How do you think this will affect the economy?

Answers

South Africa is a country located at the southern tip of Africa. It has had a rich colonial history since the seventeenth century. In 1652, the Dutch came and founded a colony on the Cape.

After a century and a half of Dutch colonization, the Cape Colony was taken over by the United Kingdom. As a result, a large number of Dutch-speaking settlers, known as Boers, migrated inland with the Great Trek and founded several Boer states, of which the South African Republic and the Orange Free State were ultimately the most important. These republics were conquered by the British in 1902 in the Second Boer War and united together with the Cape Colony and Natal to form South Africa in 1910.

In the 20th century, South Africa was overshadowed by apartheid, a system of racial segregation that systematically disadvantaged the non-white population. Apartheid was abolished in 1990 and Nelson Mandela was elected South Africa's first black president in 1994.

South Africa is a country with diverse population groups and eleven official languages. The country is a parliamentary republic with three capitals and is one of the most developed countries in the continent, but poverty and crime rates remain high.

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In a pet store there are 4 stacks of dog beds.there is total of 24 dog beds are each stacks

Answers

there’s 6 beds in each stack

what global winds form much of the weather in the us?

Answers

Prevailing Westerlies

What happened to Germany after Charlemagne's death?
Germany broke up into small, independent political units.
Western powers occupied Germany.
Germany suffered a major economic collapse.
Adolf Hitler and the Nazi Party took power.

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Answer:

Adolf Hitler and the Nazi Party took power .

The incident that happened to Germany after Charlemagne's death is that Adolf Hitler and the Nazi Party took power.

What happened when Charlemagne's died?

After the death of Charlemagne then the Carolingian Empire weakened and empire was divided into three parts and after this Adolf Hitler and the Nazi Party took power

Therefore option D is correct.

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What is it called when people start placing loyalty to their own territory?

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Answer: That is called sectionalism.

1: Explain how individual water molecules move in a wave.

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Answer:

Explanation:

individual water molecules move in circles that get smaller with depth and eventually stop altogether

Individual water molecules are seen to flow in circles that become smaller with depth and ultimately halt.

What are water molecules?

Water molecules compromises of two elements. They are:

Hydrogen (2 molecules); andOxygen (1 molecule).

Thus, one should note that Individual water molecules are seen to flow in circles that become smaller with depth and ultimately halt.

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the global patterns of atmospheric circulation and precipitation occur because of

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The global patterns of atmospheric circulation and precipitation occur because of rising masses of warm air and sinking masses of cool air. Currents in the ocean can have a warming or cooling effect on land climates.

It can be inferred from global patterns of population growth that the country most likely to be in West Africa is?
Country I

Answer A: Country I

Answer B: Country II

Answer C: Country III

Answer D: Country IV

Answers

Based on the patterns seen in the table, the most likely country in West Africa is Country III

West Africa is:

The fastest growing region in terms of population in the world Known to have a high death rate as well

The country with the highest population growth rate over the period is Country III and it also has a high death rate.

We can therefore conclude that Country III is most likely in West Africa.

Find out more at https://brainly.com/question/12228859.

Questions:
1. What is happening at Slit B? What feature occurs at the corresponding
Location on the seafloor?

Answers

At the location of the Silt B, the Magma is forced upward, thereby, creating new ocean floor and the feature which occurs at Silt B location is the central valley of the mid ocean ridge.

At the mid-ocean ridge, the seafloor is formed by plate tectonics which have active eruption features.

The mid-ocean ridge is where the seafloor spreading takes place along the divergent plate boundary.

In conclusion, at the Silt B, the Magma is forced upward, thereby, creating new ocean floor and feature of the Silt B location is central valley of the mid ocean ridge.

Read more about Sea floor

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what fraction of an iceberg is above the surface of the water?

Answers

Answer:

About 1/10

Explanation:

This is due to the volume, size, and age of the iceberg. Hope this helps :)

Explain two geographical advantages islands have that help promote trade.

Answers

They are remote and can be good locations for ports to be built, they are also often under less trade regulations than many countries and can promote their trade

Climate is not directly affected by the movement of tectonic plates. Please select the best answer from the choices provided T F.

Answers

Answer:

False

Explanation:

Movement of plate tectonics causes a change in the ocean currents and in turn generates more heat. Shifting of these tectonic plates result in the creation of the volcanic eruptions increases the degree of carbon dioxide (CO2) and sulphur dioxide (SO2) in the atmosphere that also leads to a rise in the temperature levels.

The statement that the climate change is not directly affected by the movement of tectonic plates is FALSE. The climate change is badly impacted by the movement of tectonic plates.

The tectonic plates are that part of the Earth that are comprised of the uppermost mantle of the Earth's crust. And have a thickness of around one hundred kilometers.

Tectonic Plates

There are four major types of tectonic plates movement which are classified as divergent boundary plates, non-divergent boundary plates, transform fault boundaries, and geographical plate boundary zonal plates.

When these plates move they cause serious climatic damages and changes like earthquakes which further damage the regions in a major and severe way causing disturbance to normal climate.

The climatic changes are a result of the movements in the plates due to the rotation and revolution of the Earth, causing natural imbalance and damages referred to as Acts of God.

Hence, the statement quoted above that climate is not directly impacted by the movement of tectonic plates is FALSE.

To know more about tectonic plates, click the link below.

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_________ proposed the continental-drift hypothesis, suggesting that the arrangement of continents on the planet has changed over geologic time.

Answers

Answer:

Alfred Wegener proposed the continental-drift hypothesis, suggesting that the arrangement of continents on the planet has changed over geologic time.

what caused acid rain in europe

Answers

Answer:

Sulfur dioxide (SO2) and nitrogen oxides (NOx) released into the air by fossil-fuel power plants, vehicles and oil refineries

Explanation:

Give a descriptive case study of the floods of 2021 of sangli and kolhapur

Answers

Give a descriptive case study of the floods of 2021 of sangli and kolhapur.

Answer ; Starting on 22 July 2021, Maharashtra saw heavy rainfall in many of its western districts. On 23 July 2021, NDTV reported that Maharashtra saw the highest rainfall in the month of July in 40 years.[4]Starting on 22 July 2021, Maharashtra saw heavy rainfall in many of its western districts. On 23 July 2021, NDTV reported that Maharashtra saw the highest rainfall in the month of July in 40 years.[4]Climate change could have played an important role in causing large-scale floods across Maharashtra.[5] The observed data shows a three-fold rise in widespread extreme rainfall events across India, including those regions where the floods occurred. The local meteorological conditions showed the presence of a low pressure system in the Bay of Bengal, anchoring the monsoon westerlies blowing from the Arabian Sea. These westerlies brought in an anomalous amount of moisture from the warm Arabian Sea, releasing them as heavy-to-extreme rains across Maharashtra over a week's time.[6] In April 2021, Potsdam Institute for Climate Impact Research reported about climate change heavily impacting the monsoon seasons in India.[3]
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