After tectonic forces created a rift valley that separated a plate into two landmasses, the valley filled with water and became the Persian Gulf
True
False

Witch layer of the atmosphere has the most air pressure

What are canada’s major boundaries?

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.