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7. Convergent boundaries this is where tectonic plates are crashing together. The surrounding rocks present melt along this boundary. What require this possible event to occur?
a. increase in temperature
b. heat transfer
c. conduction in the mantie
d. all of these​

Sagot :

Geloo5idn

Answer:

D. All of these

Explanation:

Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. The denser plate is subducted underneath the less dense plate. The plate being forced under is eventually melted and destroyed.

A. Where oceanic crust meets ocean crust

Island arcs and oceanic trenches occur when both of the plates are made of oceanic crust. Zones of active seafloor spreading can also occur behind the island arc, known as back-arc basins. These are often associated with submarine volcanoes.

B. Where oceanic crust meets continental crust

The denser oceanic plate is subducted, often forming a mountain range on the continent. The Andes is an example of this type of collision.

C. Where continental crust meets continental crust

Both continental crusts are too light to subduct so a continent-continent collision occurs, creating especially large mountain ranges. The most spectacular example of this is the Himalayas.

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