What is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq?

Suggest two reasons why irrigation is important for human development of the desert

If a volcano’s magma is high in silica, the volcano will probably a. erupt quietly. b. remain dormant. c. erupt explosively. d. produce dark-colored lava.

Circle the letter of the sentence that describes how a fault-block mountain is created. a. it is created by two normal faults b. it is created by two reverse faults c. it is created by a strike-slip fault d. it is created by shearing