At divergent plate boundaries hot mantle rock rises and what occurs

Explain how a convection current in the earth is formed.

An enormous wave generated by an earthquake beneath the seafloor is known as a

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.