Environmental Science
The atmosphere near the earth's surface is "heated from below." Which of the following does not significantly contribute to this heating?

Absorption of infrared energy that has been radiated from the surface
Heat energy from the earth's interior
Conduction of heat upward from a hot surface
Convection from a hot surface

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Environmental Science
Which of the following is not a reason why water warms and cools much more slowly than land?

A portion of the solar energy that strikes water is used to evaporate it
Water has a higher heat capacity
Solar energy penetrates more deeply into water
It takes more heat to raise the temperature of a given amount of soil 1oC than it does to raise the temperature of water 1oC
Heat energy is mixed in a deeper layer of water

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Environmental Science
At night, low clouds:

Weaken the atmospheric greenhouse effect
Have no effect on the atmospheric greenhouse effect
Are often caused by the atmospheric greenhouse effect
Enhance the atmospheric greenhouse effect

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