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- 1. Multiple Choice
Which of the following contains MOST of the water on Earth?
the oceans
watersheds
the atmosphere
ice and aquifers
- 2. Multiple Choice
Where does most fresh water exist?
ice caps, lakes, and streams
glaciers, rivers, and oceans
aquifers, ice caps, and glacier
- 3. Multiple Choice
Which describes the hydrosphere?
all of Earth’s organisms and the environments in which they live
a layer of Earth’s atmosphere made up primarily of concentrated ozone
all of the water in Earth’s oceans, lakes, seas, rivers, and glaciers, plus the water in the atmosphere
- 4. Multiple Choice
Approximately what percentage of the hydrosphere is represented by the oceans on Earth?
30%
70%
87%
97%
- 5. Multiple Choice
Where is the majority of Earth’s freshwater located?
groundwater
oceans
lakes
ice
- 6. Multiple Choice
According to scientists, only 1% of the water on Earth is available for human use. Where is this available water most likely found?
ocean
groundwater
rivers and lakes
glaciers and ice caps
- 7. Multiple Choice
Which best describes freshwater on Earth?
About two thirds of Earth’s freshwater is in the ocean.
About half of Earth’s freshwater is considered polluted.
Most of Earth’s freshwater is stored in rivers or streams.
Most of Earth’s freshwater is stored in ice caps and glaciers.
- 8. Multiple Choice
Where is most of the freshwater found on Earth?
atmosphere
groundwater
polar ice caps
rivers and streams
- 9. Multiple Choice
Which is the most abundant freshwater resource in North Carolina?
estuaries
icebergs
oceans
rivers
- 10. Multiple Choice
Why is freshwater in short supply on Earth?
Most of it is frozen.
Most of it is polluted.
Most of it is in the atmosphere.
Most of it is trapped underground.
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