Environmental Science
The lowest temperature is usually observed:

Several hours after sunrise
At the time of sunset
Around sunrise
Several hours before sunrise
Near midnight

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

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

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Environmental Science
Low clouds retard surface cooling at night better than clear skies because:

The clouds start convection currents between them
The clouds absorb and radiate infrared energy back to earth
The clouds are better conductors of heat than is the clear night air
The water droplets in the clouds reflect infrared energy back to earth
The formation of the clouds releases latent heat energy

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