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- 1. Multiple Choice
Less than 3% of the water on earth is
salt water
freshwater
ice
polluted
- 2. Multiple Choice
Most of the world's freshwater is found here?
ocean
lakes
rivers
glaciers
- 3. Multiple Choice
How much of the world's surface water is drinkable?
Less than 1%
5%
25%
99%
- 4. Multiple Choice
Most of our drinkable water is found where?
ponds
ocean
groundwater
pool
- 5. Multiple Choice
Water that is stored in pores, soil, sediments and rocks is known as_____________?
salt water
freshwater
soil water
groundwater
- 6. Multiple Choice
Groundwater accumulates very quickly.
True
False
- 7. Multiple Choice
The main source of water for most people is ___________.
ocean
lake
groundwater
glaciers
- 8. Multiple Choice
What are the two main problems with water?
overuse and pollution
frozen and too salty to drink
too many fish and pollution
color and taste
- 9. Multiple Choice
How do humans affect the availability of water? (Select more than one answer.)
Building dams
Changing (modifying) lakes and streams
Overuse of water for power and agriculture
Melting glaciers
- 10. Multiple Choice
This substance from sewage, agriculture, and industries lowers the quality of water and kills fish and other living things in it.
ocean water
groundwater
smog
runoff
- 11. Multiple Choice
Mercury and Lead are examples of what?
types of rocks
heavy metals
sea life
types of trees
- 12. Multiple Choice
How can we help prevent water pollution? (There is more than one answer.)
Use less detergents
Do not pour grease down the drain
Allow farm waste to wash off into the lakes.
Use less fertilizers on yards and crops
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