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.

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

B. irrigation

2. Choose all the answers that apply.

Condensation: is the change from a gas into a liquid

3. Choose all the answers that apply.

Precipitation: falls mostly in the form of rain

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

C. roughly equal to the amount that falls as precipitation

Which of the following statements is true?

The first one is true and even the second

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion