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How do volcanoes above hot spots differ from volcanoes above subduction zones?


AVolcanoes above hot spots have more viscous lava.
BVolcanoes above hot spots tend to be stratovolcanoes.
CVolcanoes above subduction zones have lava that is not basaltic.
DVolcanoes above subduction zones do not tend to be in major earthquake areas.

Verified Answer :

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CVolcanoes above subduction zones have lava that is not basaltic.

Option (C)

Explanation:

The magma in the hot-spot region are basaltic, they can move fast because of their low viscosity. Whereas, the magma present in the subduction zone are rhyolitic, and moves slowly due to its high viscosity. Viscosity of a magma is directly proportional to its silica content.

This is the difference between the volcanoes over a hot-spot region and over subduction zone.

Answer: Thus, the correct answer is option (C).

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