Geography

Question

Look at the map. At the area labeled A, the Pacific Plate is sliding under South

America.

is likely to occur in this area in conjunction with the

subduction zone.

Eurasian

Plate

North

American

Plato

Pacific

Plate

Caribbean

Plate

(Phillpp

Cocos

Plato

Indo-Australian

Plate

Ring

Fire

Nazca

Plate

Antarctic

Plato

A

South

American

Plato

• A. Volcanism

• B. Island Building

• C. Sea-floor spreading

Answer

A. Volcanism is likely to occur in this area in conjunction with the subduction zone.

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When the Pacific Plate subducts under the South American Plate, it creates a convergent boundary. This boundary is characterized by the formation of a deep oceanic trench and a volcanic arc. As the Pacific Plate descends into the mantle, it melts and generates magma that rises to the surface, leading to the formation of volcanoes. Therefore, the subduction zone at area A is likely to experience volcanic activity.