Unit Test — Unit test Answers
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Ecosystems have trouble adjusting to short-term changes.
A
TB
F42
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Which action causes breakers?
A
Waves hit the shore at an angle and transport sand.B
Water flows away from the shore and moves sand with it.C
Underwater earthquakes cause motion throughout ocean water.D
Waves meet the shore and cause the crest to spill over the trough.43
Why does a coastal area have less variation in temperature than a noncoastal area?
A
Temperatures feel cool all year round due to the duration of daylight.B
Temperatures change from warm to cool depending on the season.C
The temperatures on land change more rapidly than temperatures on water.D
The air is warm because warm water moves from the equator to the poles.44
Look at the diagram showing the different wavelengths in sunlight.
A
They take the form of heat.B
They can cause skin cancer and sunburn.C
They are some of the shortest waves.D
They can be seen by human eyes as visible light.45
The increased ranges of plant and insect species resulting from climate change has only negative consequences.
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TB
F46
Which is one factor that adds to the greenhouse effect?
A
a decrease in the amount of dust in the atmosphereB
a decrease in the amount of water on Earth’s surfaceC
an increase in gases in the atmosphere that absorb heatD
an increase in the amount of solar radiation that reflects into space47
Which is one characteristic of deep ocean currents?
A
Deep ocean currents move quickly.B
Deep ocean currents are caused by winds.C
Deep ocean currents move cold water toward the equator.D
Deep ocean currents are affected by temperature but not by salinity.48
Which of the following is not a possible cause for air pollution?
A
volcanoesB
industryC
combustionD
none of the above49
Driving cars lowers the pH of the oceans by _______.
A
releasing CO2 that dissolves and forms acid in the oceansB
releasing pollutants that lead to smogC
releasing CO that dissolves and forms acid in the oceansD
releasing pollutants that lead to acid rain50
Alternative energy sources like solar and wind power _______.
A
are always availableB
are only replenished with human interventionC
are renewableD
are more versatile than fossil fuels51
Which statement describes the impact of ocean currents on climate?
A
Ocean currents create changes in the temperature of air over land masses.B
Ocean currents cause the temperature of air over large bodies of water to change.C
Ocean currents move cold water from the equator to the poles, creating cool weather regions.D
Ocean currents carry warm water from the poles to the equator to create warm weather regions.Did you find these answers helpful?
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