Answer:
I think H means high air pressure and L means low air pressure
Answer:
Melting would have caused denser substances to sink toward the center while less-dense materials would have migrated to the crust.
Explanation:
Answer: The united states
C. The moon rotates at the same speed it orbits the earth, that is why we can only see one side of the moon.
Answer:
the arow in the up is the east