Mafic magma is generated at divergent boundaries because of

A. decompression melting
B. water under pressure
C. melting of the lithosphere
D. magmatic underplating


Answer: A

Environmental & Atmospheric Sciences

You might also like to view...

The lakes in the photograph below are all connected by a stream, so they are called



A) cols.
B) kames.
C) paternoster lakes.
D) cirques.

Environmental & Atmospheric Sciences

If you have 3 tables to be linked, how many relates do you need to establish?

A. 2 B. 4 C. 1 D. 3

Environmental & Atmospheric Sciences

The dominant surface winds from the subtropics to high latitudes are the

A) westerlies. B) trade winds. C) polar easterlies. D) geostrophic winds.

Environmental & Atmospheric Sciences

Which is not a characteristic of a tsunami?

A) One giant wave is followed almost immediately by an even larger one. B) The water floods far onto land for an extended period of time. C) Tsunami develop suddenly and without warning. D) Tsunami have extremely tall wave heights.

Environmental & Atmospheric Sciences