Intrusive and extrusive volcanic activity

Question 1

What is intrusive volcanic activity?

Answer 1

This takes place beneath the Earth’s surface and includes the formation of large magma chambers and magma being forced into the crust (through cracks in the rock)

Question 2

What is extrusive volcanic activity?

Answer 2

Takes place on the Earth’s surface and the major form of this activity is volcanic eruptions of lava and other material

Question 3

What are the minor types of extrusive activity?

Answer 3

Hot springs, geysers and boiling mud pools