Environmental Science
An important reason for the large daily temperature range over deserts is:

Dry air is a very poor heat conductor
There is little water vapor in the air to absorb and re-radiate infrared radiation
The light-colored sand radiates heat very rapidly at night
Free convection cells are unable to form above the hot desert ground
The ozone content of desert air is very low

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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
Heat energy is mixed in a deeper layer of water
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
A portion of the solar energy that strikes water is used to evaporate it

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