Just for fun

1. What is this a picture off?

A: A couple of circles

B: A volcano from above

C: A load of swirls

D: I really haven't got a clue!

2. Can all of a parent isotope decay into its daughter isotope?

A: Yes

B: No

3. Which of the following statements concerning this diagram is correct?

A: A discordant intrusion is called a dyke and a concordant intrusion is called a sill

B: A discordant intrusion is called a sill and a concordant intrusion is called lava

C: A discordant intrusion is called a sill and a concordant intrusion is called a batholith

D: A discordant intrusion is called a volcanic pipe and a concordant intrusion is called a dyke