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NC Science EOG Review For Hydrosphere
Test Description: Review questions for hydrosphere goal
Instructions: Answer all questions to get your test result.
1) Where is most freshwater on Earth?
A
rivers
B
groundwater
C
lakes
D
polar ice caps
2) Which describes the hydrosphere?
A
It is made only of freshwater
B
All of it is located above ground
C
Most of it contains salt
D
It is formed by climate change
3) Which condition in the ocean is most responsible for an increase in the fish population near the surface?
A
buoyancy
B
density
C
upwelling
D
salinity
4) Which pair of organisms represents a connection between aquatic and terrestrial food webs?
A
whales and plankton
B
seagulls and oysters
C
spiders and mosquitoes
D
humans and coral
5) Which tool is used to determine precipitation amounts?
A
thermometer
B
rain gauge
C
hygrometer
D
balance scale
6) What percentage of water on Earth is saltwater?
A
97
B
3
C
70
D
50
7) What percentage of water on Earth is fresh water?
A
3
B
50
C
97
D
70
8) If a sewer pipe is leaking from an apartment building into a river, what kind of pollution is it?
A
runoff
B
point-source
C
fertilizer
D
non-point-source
9) Nitrate pollution can come from animal wastes and
A
low alkalinity
B
babies
C
dissolved calcium
D
fertilizers
10) Which form of water has the highest density?
A
water vapor
B
ice
C
liquid water
D
they are all the same
*select an answer for all questions
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