Answer the following question given this paragraph: 

Magma that cools underground forms intrusions ( Figure below ). Usually this magma is very viscous felsic magma. This magma does not rise easily and so cools slowly underground. Intrusions become land formations if they are exposed at the surface by uplift and erosion.


Q: What does magma that cools underground form?

 Choices:

- anomalies

- plates

- cracks

- intrusions

A:
intrusions
