Magma tends to rise toward Earth's surface principally because ________

A) water is an abundant constituent of magma
B) silica increases the viscosity of the magma
C) rocks become less dense when they melt
D) of convection in the mantle


Answer: C

Environmental & Atmospheric Sciences

You might also like to view...

The new phase of urbanization (14th century) that emerged with the regional trade networks of Northern Italy and the Hanseatic League was based on merchant capitalism

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences

The two types of body waves are ____and ____ waves

A)Raleigh; Love B)focal; distal C)primary; secondary D)tensional; extensional E)compressional; extensional

Environmental & Atmospheric Sciences

Which essential gas is often in an unusable form in the ocean and atmosphere?

a. Nitrogen b. Oxygen c. Carbon dioxide d. Methane

Environmental & Atmospheric Sciences

In India, 80 percent of the villages lack all-weather roads

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences