Multiple Choice
Which is one of four processes that produces different varieties of igneous rocks?
A) Single source rocks melt to form different types of magma.
B) Magma in a volcano changes mineral composition as soon as it is ejected.
C) Magma stays the same after assimilating nearby rocks.
D) Magma can change its composition by assimilating nearby rocks.
Correct Answer:

Verified
Correct Answer:
Verified
Q78: If volcanic rocks are formed on the
Q79: The composition of the magma determines the
Q80: Which of the following causes the formation
Q81: The correct size order of pyroclastic material
Q82: Why is calcite not common in the
Q83: Why is silicate the most prevalent mineral
Q84: Why are igneous rocks that consist of
Q86: Why should a student on a field
Q87: A large intrusion of magma that forms
Q88: How does magma generation relate to Plate