Question

volcanic activity is common in areas around marine trenches. give reason ​

Answer 1

Explanation:

• the surface as sea-floor spreading causes plates to move apart and new crust is formed by magma pushing up from the mantle. Because the 75 Percent of the world's volcanoes are all present in the Pacific ring of fire...and there are a number of marine trenches present in the Pacific ring of fire...

Answer 2

The surface as sea-floor spreading causes plates to move apart and new crust is formed by magma pushing up from the mantle. Because the 75 Percent of the world's volcanoes are all present in the Pacific ring of fire.And there are a number of marine trenches present in the Pacific ring of fire.