Question

1. The molten material deep inside Earth from which igneous rocks form is called ________. (1 point)
magma
lava
neither a nor b
both a and b
2. Basaltic igneous rocks are ________. (1 point)
light colored
lower in density than granitic rocks
rich in iron and magnesium
both a and b
3. Magma from deep inside Earth rises toward the surface because ________. (1 point)
it is denser than surrounding solid rock
it is less dense than surrounding solid rock
it has the same density as the surrounding solid rock
none of the above

Answer 1

1. A
2.D
3.B