Environmental Science
At night, low clouds:

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

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

Water has a higher heat capacity
A portion of the solar energy that strikes water is used to evaporate it
Heat energy is mixed in a deeper layer of 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
Solar energy penetrates more deeply into water

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