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1. Which of the following processes are part of the hydrologic (water) cycle?
A. Evaporation, condensation, precipitation
B. Transpiration, infiltration, runoff
C. Groundwater flow
D. All of the above
Answer: D. All of the above
2. Which Earth spheres are involved in the water cycle?
A. Hydrosphere, atmosphere
B. Geosphere, biosphere
C. Hydrosphere, atmosphere, geosphere, biosphere
D. Lithosphere only
Answer: C. Hydrosphere, atmosphere, geosphere, biosphere
3. Approximately what percentage of the Earth’s total water is freshwater?
A. 10%
B. 25%
C. 3%
D. 50%
Answer: C. 3%
4. Approximately what percentage of freshwater is groundwater?
A. 10%
, B. 30%
C. 50%
D. 70%
Answer: B. 30%
5. What is the largest use of groundwater worldwide?
A. Domestic use
B. Industrial use
C. Agriculture (irrigation)
D. Recreation
Answer: C. Agriculture (irrigation)
6. What is porosity?
A. The speed at which water flows
B. The amount of empty space in soil or rock
C. The hardness of rock
D. The chemical composition of water
Answer: B. The amount of empty space in soil or rock
7. Which material has higher porosity?
A. Solid rock
B. Sand
C. Clay
D. Metal
Answer: B. Sand
8. What is permeability?
A. The ability of water to dissolve substances
B. The amount of water in soil
C. The ease with which water moves through material
D. The depth of groundwater
Answer: C. The ease with which water moves through material
, 9. Which material has higher permeability?
A. Clay
B. Gravel
C. Solid rock
D. Sandstone
Answer: B. Gravel
10. What is an aquifer?
A. A surface water body
B. A layer of impermeable rock
C. An underground layer that stores and transmits groundwater
D. A type of soil
Answer: C. An underground layer that stores and transmits groundwater
11. Which materials commonly form good aquifers?
A. Clay and shale
B. Sandstone, gravel, limestone
C. Granite only
D. Ice
Answer: B. Sandstone, gravel, limestone
12. What characteristics make a good aquifer?
A. Low porosity and low permeability
B. High porosity and low permeability
C. High porosity and high permeability
D. Low porosity and high permeability
Answer: C. High porosity and high permeability
13. A confined aquifer is best described as:
A. Open to the atmosphere
B. Located above the water table
C. Bounded between two impermeable layers
D. Located only in deserts
Answer: C. Bounded between two impermeable layers