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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
polar ice caps
B
groundwater
C
rivers
D
lakes
2) Which describes the hydrosphere?
A
All of it is located above ground
B
It is made only of freshwater
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
density
B
buoyancy
C
salinity
D
upwelling
4) Which pair of organisms represents a connection between aquatic and terrestrial food webs?
A
whales and plankton
B
spiders and mosquitoes
C
seagulls and oysters
D
humans and coral
5) Which tool is used to determine precipitation amounts?
A
balance scale
B
rain gauge
C
hygrometer
D
thermometer
6) What percentage of water on Earth is saltwater?
A
70
B
50
C
3
D
97
7) What percentage of water on Earth is fresh water?
A
70
B
97
C
3
D
50
8) If a sewer pipe is leaking from an apartment building into a river, what kind of pollution is it?
A
point-source
B
fertilizer
C
non-point-source
D
runoff
9) Nitrate pollution can come from animal wastes and
A
low alkalinity
B
babies
C
fertilizers
D
dissolved calcium
10) Which form of water has the highest density?
A
ice
B
liquid water
C
water vapor
D
they are all the same
*select an answer for all questions
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