1. What is most of the water usage in the United States used for?

A. drinking
B. irrigation
C. livestock
D. electricity

2. Choose all the answers that apply.

Condensation:

1. forms clouds
2. is the change from a liquid into a gas
3.is the change from a gas into a liquid
4. happens immediately before evaporation
5. returns freshwater to the earth

3. Choose all the answers that apply.

Precipitation:

1. occurs evenly all over the earth
2. returns freshwater to the earth
3. is the change from a liquid into a gas
4. occurs when snow and ice change directly into water vapor
5. falls mostly in the form of rain

4. The amount of water that evaporates from earth is _____.

A. less than the amount that falls as precipitation
B. more than the amount that falls as precipitation
C. roughly equal to the amount that falls as precipitation

Which of the following statements is true?

A. The equator is warmer than the poles because the sun's energy is spread over a smaller area.

B. The more sunspots on the sun's surface, the cooler the earth's climate.

C. Wind is caused by warm air from the equator sinking and moving away from the poles.

D. As latitude North and South of the equator decreases, average temperature decreases.