Explanation:
Convection occurs in the Earth's mantle because it is the most efficient way for the Earth to cool or dispose of its deep-seated heat content. In general, heat can be transferred by conduction, radiation or convection.
Answer:
I thinks it's B
Explanation:
Because it's what dams do.
It's not D because it caused people to relocate, it's not C because that doesn't make sense.
~Hello There!~
B. In the twentieth century alone, the world population grew by more than 5 billion people.
C. Population grew slowly until the eighteenth century because death rates were higher.
Hope This Helps You!
Good Luck :)
Have A Great Day ^_^
- Hannah ❤
