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# Water Cycles Practice Questions

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Review the following concepts: Water Cycles Study Guide

## Practice Questions

1.  About how much more water is in the ocean than in the atmosphere? Use Table 11.1 to do the calculation.

a.  100,000 times

b.  1,000,000 times

c.  10,000 times

d.  1,000 times

2.  What is the second largest reservoir of water on Earth?

a.  groundwater

b.  lakes

c.  glaciers and ice caps

d.  soil moisture

3.  Which of the following is true for water?

a.  The latent heat of melting is greater than the latent heat of vaporization.

b.  The latent heat of vaporization is greater than the latent heat of freezing.

c.  The latent heat of melting is greater than the latent heat of freezing.

d.  The latent heat of condensation is greater than the latent heat of vaporization.

4. According to Table 11.1, lakes contain 125,000 cubic kilometers of water. The land of Earth is about 150,000,000 square kilometers. If all the water in all the lakes were to be spread out evenly across the land, about how deep would that water be?

a.  1 centimeter

b.  1 meter

c.  1 millimeter

d.  10 centimeters

5.  Which of the following reservoirs contains the least total amount of water?

a.  lakes

b.  rivers

c.  soil moisture

d.  the sum of life forms

6. In the global water cycle, which two reservoirs would not be directly connected by a flux?

a. ocean surface and ocean air

b. plants and land air

c. groundwater and ocean air

d. ocean air and land air

7. Look at Figure 11.1 and determine the global amount of rain, in thousands of cubic kilometers per year.

a. 450

b. 570

c. 120

d. 70

8. Of the following, which flux does not involve a change of state of the water between gas, liquid, or solid?

a. evaporation from ocean

b. transpiration from plants

c. freezing into snow in clouds

d. rivers flowing into the ocean

9. Approximately how long does water vapor stay in the atmosphere, on average, before it rains out and is replaced by new water vapor?

a. a week

b. a month

c. a day

d. a year

10. Look at Figure 11.1 and determine how much total water enters the ocean each year from all the fluxes that go into the ocean, in terms of thousands of cubic kilometers per year.

a. 500

b. 450

c. 50

d. 400

1.  a.  100,000 times

2.  c.  glaciers and ice caps

3.  b.  The latent heat of vaporization is greater than the latent heat of freezing.

4.  b.  1 meter

5.  d.  the sum of life forms

6.  c.  groundwater and ocean air

7.  b.  570

8.  d.  rivers flowing into the ocean

9.  a.  a week

10.  a.  500

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