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14 questions
Which of the following are types of freshwater that can be used by people?
Select all that are true.
groundwater
ice caps and glaciers
oceans
rivers
lakes
Why does groundwater usually require less treatment than surface water?
The layers of Earth protect groundwater from pollutants.
As groundwater sinks into the ground, the layers of rock act like a natural filter and remove pollutants from the water.
Surface water has more exposure to pollutants in runoff and the atmosphere.
all of the above
The image shows various stages in the water cycle. During which stage does water flow back towards the sea as runoff?
W
X
Y
Z
Rain and snow are two different forms of precipitation that fall on Earth's surface. Which factor is responsible for there being different forms of precipitation?
Evaporation
Run-off
Temperature
Transpiration
Plants using water, carbon dioxide, and energy to make food.
evaporation
photosynthesis
water cycle
transpiration
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