Which of the following would likely result from a civilization overpopulation new country borders
political change
starvation
water surplus​

new country borders.

Explanation:

It wouldn't be water surplus because surplus means more. Political change has nothing to do with over population. Starvation is not really likely. But since there is an overpopulation you would need more room to expand.

answer; /// during daylight hours the sun heats up the ground,and at night the clouds insulate the warmth making it warmer ;

answer; i believe the correct answer is (a) nigeria is the largest african crude (oil) supplier; /// so revenue from petroleum;