draw the cascadia subduction zone. Label the trench, the plates and which is going under the other one, and where volcanos are formed

Option (1)

Explanation:

When an oceanic plate collides with a continental plate, the denser oceanic plate gets subducted beneath the less denser continental plate, and this down-going slab undergoes partial melting at greater depth known as the subduction zone, which forces the magma to rise up and form volcano on the over-riding plate.

These volcanoes are of three types, namely the composite, dome and shield volcano. For example, Mount Vesuvius and Mount Fuji.

Thus, the correct answer is option (1).

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