Which is a major reason that Central Asia has been conquered repeatedly? A. The flat terrain made it vulnerable to attack.
B. Portugal and Spain wanted control of the Silk Road.
C. China and Australia battled for control of its resources.
D. The climate there made nomadic lifestyles impossible.
ITS A!

Which of the following energy sources is not an example of renewable energy? a. a wind turbine farm b. a clean-burning, coal-fired electric plant c. a hydroelectric dam d. a solar panel mounted on a home

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

What is a small water source like a stream or brook?