Massive stars build up a core of __________ (what is the fin…

What is the impact of impacts?

Which of the following are ways to map the sea floor?

What is the rain shadow effect?

What are the conditions for fossilization?

What are the three possible shapes of the universe?

What is the principle of superposition?

Which of the following is a slow geologic process?

Once a star is born, what is the force/mechanism that can go…

A mineral is any ________________ occurring, _____________ s…