Question

What best describes magma generation at convergent plate boundaries?

A. the subducting plate partially melts due to rising temperature and pressure
B. metamorphic reactions in the subducting slab incorporate water and partially melt the rock
C. passively rising warm mantle decompresses and melts
D. water escapes the subducting plate into the overlying mantle, causing partial melting

Answer 1

A

Step-by-step explanation:

At convergent boundaries magma is formed where water from a subducting plate acts as a flux to lower the melting temperature of the adjacent mantle rock.