What is the thickness of the crust?
A. 10 km to 200 km
B. 50 km to 300 km
C. 30 km to 400 km
D. 100 km to 200 km.
Answer:A
What is the thickness of the crust?
A. 10 km to 200 km B. 50 km to 300 km C. 30 km to 400 km D. 100 km to 200 km.