Where do subduction zones often occur?

Answer 3

1. d: oceanic crust is thicker and contains a lot of granite2.d: where two continental plates are colliding  3.b.contour boundaries4.b.plates that are attracted to each other by gravity5.a.as two continental plates collide along a convergent boundary, mountains are formed.

Answer 2

The correct answer is option d. where two continental plates are colliding. The subduction is a process, in which the colliding of one continental plate to another causes the movement of one plate inside other. The movement of one plate inside the other one occurs due to the gravity in the mantle. The region formed by the process of subduction is known as the subduction zone.

Answer 6

A. Where an oceanic plate is movie toward a continental Plate. Hope this helps!!!

Answer 8

D. . Where two continental plates are colliding

Answer 4

1- Option (C) 2- Option (B) 3- Option (A) Explanation: The continental crust is thick and is about 35 to 40 km on an average and is comprised of less denser granitic rocks that contains minerals such as quartz and feldspar. But, oceanic crust is thin and about 7-10 km on an average and are comprised denser basaltic rocks containing minerals such as pyroxene, olivine and alkali feldspar. Thus, the oceanic crust are thinner and denser than the continental crust. In a convergent plate boundary, when an oceanic plate move towards the continental crust, the denser oceanic crust sinks below the lighter plate, as a result of which it forms a subduction zone that is marked by the trench. It generates deep-focus earthquakes and also forms volcanoes on the over-riding plate. Seafloor spreading refers to the separation of the oceanic plate along the mid oceanic ridge, which results in the enlargement of the ocean basin and leads to the addition of new materials to the crust. It occurs in a divergent plate motion. Thus, the correct answers are matched above.

Answer 7

B. Where an oceanic plate is moving toward a continental plate. Explanation: I just took the test and I reviewed it to make sure this is correct.

Answer 10

A subduction zone is a region of the Earth’s crust where tectonic plates meet. Tectonic plates are massive pieces of the Earth’s crust that interact with each other. So, the best option is D) where two continental plates are colliding.

Answer 5

1. It gets so dense, that it sinks in the upper mantle (subduction). This is like a giant recycling system for the oceanic lithosphere. As the continental crust is lighter than the oceanic crust, the continental crust cannot subduct. We therefore still have some very old continental rocks at the surface of the Earth.

Answer 1

D: Where two continental plates are colliding, creating a convergent boundary. One plate slips under the other because of convection currents in the mantle.

Answer 6

A. Where an oceanic plate is movie toward a continental Plate. Hope this helps!!!

Answer 9

Subductions occur at convergent boundaries. Its where one tectonic plate moves under another. -Steel jelly

Answer 10

A subduction zone is a region of the Earth’s crust where tectonic plates meet. Tectonic plates are massive pieces of the Earth’s crust that interact with each other. So, the best option is D) where two continental plates are colliding.

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