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