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Hydrosphere EOG Practice
Test Description: Hydrosphere EOG practice
Instructions: Answer all questions to get your test result.
1) Which technology below, has allowed scientists to accurately map the ocean floor?
A
scuba gear
B
robots
C
sattilites
D
sonar
2) Which of the following contains the most water on Earth?
A
Oceans
B
Aquifers
C
Rivers
D
Lakes
3) According to scientists, only 1% of the water on Earth is available for human use. Where is this most of Earth's freshwater located?
A
Icebergs
B
Aquifers
C
lakes
D
Oceans
4) How does the use of a pH meter help monitor the hydrosphere?
A
by indicating if there is enough dissolved oxygen in the water
B
by indicating whether the water is too acidic or basic
C
by indicating if there is too much sediment in the water
D
by indicating whether microorganisms are living in the water
5) Why do lakes, rivers, and streams most likely require more treatment than groundwater?
A
They experience fewer governmental regulations.
B
They are exposed to a greater variety of contaminants.
C
all the above
D
They are classified as surface water resources.
6) Which factors can have the greatest effect on the health of a river system?
A
human consumption and pH
B
natural disasters and tidal changes
C
nitrate levels and turbidity
D
type of soil and salinity
7) Why is water from an aquifer more likely to be cleaner than water from other sources?
A
because it forms where fresh and salt water meet
B
because pollutants are filtered by rock and soil deep within Earth
C
because it receives water directly from precipitation
D
because it rises to the surface near the ocean
8) Which best describes the water found in estuaries?
A
salt water
B
freshwater
C
Thomas Water
D
brackish
9) Which provide the best source of information about the quality of water in aquifers?
A
Wells
B
Septic Tanks
C
all the above
D
Lakes
10) Which characteristic distinguishes an estuary from other bodies of water?
A
plant life
B
dissolved oxygen levels
C
salinity levels
D
Animal life
11) Which type of ocean water would contain more dissolved oxygen?
A
warm ocean water in tropical regions
B
cold ocean water in polar regions
C
none of the above
D
temperate ocean water in subtropical regions
12) Which most likely has the highest number of contaminants in the water?
A
a water system with high turbidity
B
a water system with no turbidity
C
a water system with moderate turbidity
D
a water system with low turbidity
13) What does a pH of 7 most likely indicate about the water quality?
A
The water is safe to drink.
B
The water is toxic to drink.
C
The water is highly acidic.
D
The water is a strong base.
14) If a body of water has high turbidity levels, what can most likely be concluded?
A
It is too hot to drink.
B
It has a low pH.
C
It is unsafe to drink.
D
It contains a lot of chemicals.
15) Which change indicates a decrease in the pH of a body of water?
A
Dissolved oxygen levels increase.
B
Aquatic plants increase in numbers.
C
Large number of organisms begin to die.
D
The water becomes turbid.
16) Which is the largest zone in the ocean?
A
Intertidal Zone
B
Open Ocean
C
Capo Zone
D
Neretic Zone
17) Which phase of water in the water cycle best drives weather and climate as it travels around Earth?
A
Water Vapor
B
Water
C
Ice
D
Polar caps
*select an answer for all questions
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