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
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
Water has a higher heat capacity
Solar energy penetrates more deeply into water
Heat energy is mixed in a deeper layer of water

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Environmental Science
Although the polar regions radiate away more heat energy than they receive by insolation in the course of a year, they are prevented from becoming progressively colder each year by the:

Concentration of earth's magnetic field lines at the poles
Release of latent heat to the atmosphere when polar ice melts
Conduction of heat through the interior of the earth
Circulation of heat by the atmosphere and oceans
The insulating properties of snow

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