Earths structure

Question 1

What is the earths make up in layer from outside to in?

Answer 1

crust, mantel and core

Question 2

What creates the heat of the core?

Answer 2

decaying radioactive atoms

Question 3

What does the core heat cause?

Answer 3

convecting currents which cause the movements of plates

Question 4

What is the air make up?

Answer 4

78% nitrogen, 21% oxygen and 0.04% carbon dioxide and the rest is water vapour, argon and other nobel gases