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

how does the elevation of the north china plain compare with that of the plateau of tibet

Answers

Answer:

The plateau of Tibet is a very tall plateau in southwestern China.

Explanation:

Your question: how does the elevation of the north china plain compare with that of the plateau of tibet?

Answer: Plateau of Tibet, Chinese (Pinyin) Qingzang Gaoyuan or (Wade-Giles romanization) Ch’ing-tsang Kao-yuan, also called Tibetan Highlands or Qinghai-Tibet Plateau, vast high plateau of southwestern China. It encompasses all of the Tibet Autonomous Region and much of Qinghai province and extends into western Sichuan province and southern Uygur Autonomous Region of Xinjiang. The region lies between the Kunlun Mountains and its associated ranges to the north and the Himalayas and Karakoram Range to the south and southwest, respectively; it extends eastward to the Daxue Mountains and, farther south, the northern and central portions of the Hengduan Mountains. The plateau, which has an area of about 965,000 square miles (2,500,000 square km), is a region of tangled mountains and uplands that are generally above 13,000 to 15,000 feet (4,000 to 5,000 metres) in elevation. Mount Everest (Qomolangma Feng), rising 29,035 feet (8,850 metres) above sea level on the China-Nepal border, is the world’s highest peak (see Researcher’s Note: Height of Mount Everest).

The northern section of the plateau, called Qiangtang, is dotted with many brackish lakes; its southern section contains the headwaters of the upper Indus and Brahmaputra rivers. Other rivers that have their headwaters in the highlands are the Yangtze River (Chang Jiang), the Huang He (Yellow River), the Mekong, the Salween, and the Tarim. Grasslands are used for pasturage, and barley is grown on the plateau; forests grow on the slopes of valleys, particularly in the south. The most extensive farming in Tibet takes place on the fertile plains of the Brahmaputra River and its tributaries. Lhasa, the capital of Tibet, is the plateau’s major centre of population, economic activity, culture, and air and land transportation.




How early civilizations influence people of today? 5 paragraphs

Answers

Ancient Egypt used pictures and symbols as a form of writing just like emoji’s and the Norse said I’ve taken an arrow to the knee when proposing which is why we get down on one knee when proposing

The ___________ plays a large role in the Rain Shadow Effect as well as the Lake Effect.

A. Water Cycle
B. Mesosphere
C. Coriolis Effect
D. Troposphere

Answers

i think it might be water cycle. forgive me if im wrong

what is the only continent located in all four hemispheres?

Answers

Answer:

africa

Explanation:

This geography fact also means that Africa is the only continent to have land both at the Equator and the Prime Meridian.

13. Which scenario most likely formed most large
lakes in North America and Europe?

Answers

Answer:

Explanation:

Many lakes, especially those in the Northern Hemisphere, were formed by glacier s that covered large areas of land during the most recent ice age, about 18,000 years ago. The huge masses of ice carved out great pits and scrubbed the land as they moved slowly along. When the glaciers melted, water filled those depressions, forming lakes.

Tundra form at opposite blank

of the Earth,

Answers

Answer:

A tundra forms because the area takes in more carbon dioxide than it produces. The tundra is one of Earth's three major carbon dioxide sinks. Plants indigenous to the tundra region do not undergo a regular photosynthetic cycle.

Need claims on negative ways humans shaped their environment across the world

Answers

Answer:

Response bias (also called survey bias) is the tendency of a person to answer questions on a survey untruthfully or misleadingly. For example, they may feel pressure to give answers that are socially acceptable.Jun 24, 2015

Explanation:

what countries are located in the northern region of africa?

Answers

Answer:

Explanation:The UN subregion of North Africa consists of 7 countries at the northernmost part of the continent -- Algeria, Egypt, Libya, Morocco, Sudan, Tunisia, Western Sahara. North Africa is an economically prosperous area, generating one-third of Africa's total GDP.

how does precipitation changes with latitude and altitude


I WANT THE ANSWER FAST PLEASEEEEEEE​

Answers

Answer:

Explanation:

precipitation decreases as latitude increases toward the poles (since how much precipitation air can hold depends largely on its temperature, and depending on the seasons higher latitudes are typically colder).

The radius of the circle is 5.5mm. What is the diameter?

Answers

Answer:

The diameter would be 11.

how scientist know something happened before billion years ago

Answers

Answer:

The Big Bang is commonly thought of as the start of it all: About 13.8 billion years ago, the observable universe went boom and expanded into being.

We know that life began at least 3.5 billion years ago, because that is the age of the oldest rocks with fossil evidence of life on earth.

Nonetheless, 3.5 billion year old rocks with fossils can be found in Africa and Australia. They are usually a mix of solidified volcanic lavas and sedimentary cherts.

Explanation:

I hope this helps you !!

Answer:

scientist and people have discovered things from a while ago and did research on it, such as dinosaur bones, etc.

Explanation:

why is florence often called the ""cradle of the renaissance""?

Answers

During the Renaissance, the economy changed from a bartering economy to a money economy. ... Why was Florence called the cradle of the Renaissance? It was called the cradle because the Renaissance was called a "rebirth" and Florence was the most powerful city in the Renaissance.

the color of a mineral’s powder left behind after it is scratched on a piece of unglazed tile is its:

Answers

The color of a mineral’s powder left behind after it is scratched on a piece of unglazed tile is its mineral's streak.

What is color?

Light is the fundamental component of color. Color has the power to influence feelings, actions, and responses. The usage of the hue was mostly artistic. Three categories are primary, secondary, and tertiary were used to classify the color. Communication includes the use of color. For instance, the color red denotes both danger and affection.

The mineral powder may alternatively be called the mineral streak, depending on its color. The unglazed streak plate, sometimes known as the streak minerals, was the object that was rubbed on. The streak is the imprint still seeable on the streak plate. Surfaces that are white and firm brush against one another.

As a result, the color of a mineral’s powder left behind after it is scratched on a piece of unglazed tile is its mineral's streak.

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17. Which is NOT true about oceanic and continental crust

Oceanic crust is made up of younger rocks

Continental crust is thicker than oceanic crust

Continental crust is able to sink into the mantle

Oceanic crust is made of silica and magnesium

Answers

Answer:

C. Continental crust is able to sink into the mantle

Explanation:

What are 10 methods used to uncover the past climates of the earth including their strengths and weakness

Answers

The ten methods used to uncover the past climates of the earth including their strengths and weakness includes:

Making an analysis of the samples of ice core.Making scientific observation of the remnants of glacial land forms.Making a survey of the sediments which are on the floor of the ocean.Checking the fossils of old vegetation.Checking sites of ancient volcanoes.Making calculations of the animals which went extinct during the Ice Age.Dating the fossil of dinosaurs.Making deep glacier explorations.Checking the concentration of greenhouse gases.Checking for plucked rocks and U-shaped valleys.

Thousands and millions of years ago, the climate of the earth was much different and there were different animals and creatures around of which the most popular ones which have gone extinct are the dinosaurs.

With this in mind, humans were probably not around during this time or if they were, they would be unable to write down the climates which people of this day and age would properly interpret, therefore this is where paleoclimatology comes in as it studies the past climates of the earth through various methods which were mentioned above.

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A stateless nation is often subject to all of the following except __________.
A.
discrimination and oppression
B.
genocide
C.
a lack of political control or voice in government
D.
equal recognition in the international community

Please select the best answer from the choices provided.

A
B
C
D

Answers

Answer:

D.

equal recognition in the international community

Answer:

D) equal recognition in the international community

Explanation:

Got it right on Edge :)

quick help question..​

Answers

!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

Russia

Explanation:

Equator
Which number on the map is most likely located in a polar climate zone?
A.3
B.4
C.1
D.5

Answers

Answer:

Give person above me brainleist

Explanation:

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.

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Which of the following is true concerning continental crust? a. It does not contain radioactive elements. B. It mostly contains heavier and denser minerals than the mantle. C. It efficiently transfers heat from the mantle to the surface. D. None of the above Please select the best answer from the choices provided A B C D.

Answers

Statement that is true concerning continental crust is It mostly contains heavier and denser minerals than the mantle.

What is Continental crust?

Continental crust can be regarded as the layer of igneous as well as sedimentary, and metamorphic rocks.

This layers do form geological continents as well as  shallow seabed close to their shores, and mostly contains heavier and denser minerals than the mantle. .

Therefore, option B is correct.

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The options given in the context are all incorrect in regard to the continental crust, and the correct one is none of the above.

What is Lithosphere?

The outer parts of the soil that is the lithosphere are called the continental crust. It is formed along subduction zones at plate boundaries between continental and oceanic tectonic plates.

It makes up the planet's continents and continental shelves. Almost the majority of Earth's land surface is made up of continental crust.

The varied layers of the continental crust include granitic, sedimentary, and metamorphic types of rocks that form continents and shallow seafloor areas near their shores.

Therefore, the correct option is D.

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is Egypt a developing or developed country and why?

Answers

Answer:

Egypt is a developing country.

Explanation:

the possible HDI ( human development index) score is a 1.0. a country that scores less than 8.0 is considered developing.

Egypt curecently has a score of 0.707

Egypt is an developing country, building its infrastructure and investing more money on the industrial sector. This makes Egypt as a fast growing economy.

observable matter makes up about what percentage of the universe?

Answers

The visible universe matter only make up less than five percent

The Theory of Plate Tectonics suggests that the earth's lithosphere is broken up into slabs called

Answers

OUR MATCHLESS HOLY CHRIST JESUS LOVES US ALL

HAVE A BLESSED DAY, WEEK, AND REST OF THE YEAR OF 2021 .

Plate tectonics is the theory that Earth's outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth's mantle, the rocky inner layer above Earth's core. ... Below the lithosphere is the asthenosphere — a viscous layer kept malleable by heat deep within the Earth.

what happens when weathering and erosion work together?

Answers

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.

*
6. The Romans were the first what?
(2 Points)
Country
Civilization
Republic
Empire

Answers

Answer:

Empire

Explanation:

Octavian's power then became unassailable, and in 27 BC the Roman Senate formally granted him overarching power and the new title Augustus, effectively making him the first Roman emperor.

...

Roman Empire.

Which of the following phrases best defines migration? A. forcing others to move away from their homes B. encouraging others to move to a new place C. spreading culture from one place to another D. moving from one place to another to find a new place to live Please select the best answer from the choices provided A B C D Mark this and return

Answers

I think it would be D

In the two-substance mixtures you have investigated so far, are there any situations where there
is more than one correct answer? Explain.

Answers

Answer:

yes

Explanation:

because one can be saturated than the other or one might be dillute.

(homogenous and heterogeneous mixtures)

Based on the nature of mixtures, the two substances may homogenous or heterogeneous mixtures.

What are mixtures?

Mixtures are substance composed of two or more constituents physically combined together.

Mixtures may be solids, liquids or gases.

Mixtures can also be classified as homogenous or heterogeneous.

Therefore, based on the nature of mixtures, the two substances may homogenous or heterogeneous mixtures.

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The mixture of water and decaying organic matter leads to the development of what type of acid?

Answers

I don’t know if this is true or not but I think the answer might be Nitric Acid

As a young student how important a volcanoin your life​

Answers

Answer:

very important

Explanation:

because its how you can change your life

The boundary between the stiffer mantle and the Asthenosphere is located below Earth's surface at a depth of appoximatley

Answers

Answer:

700km

Explanation:

:)

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