Why do earthquakes frequently occur between the valleys running between Mid-Ocean ridges? HELP

Describe the german immigrants in texas. why did they emigrate from germany to texas? what are some examples of their culture in texas?

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.

Which of the following is an accurate statement about modern africa