Environmental Science
The lag in daily temperature refers to the time lag between the:

Minimum and maximum temperature for a day
Time of maximum solar radiation and the time of maximum temperature
Minimum and maximum solar energy received at the surface for a given day
Sunrise and sunset
Time of minimum temperature and the time of maximum solar radiation

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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
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
A portion of the solar energy that strikes water is used to evaporate it

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Environmental Science
Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such altitudes, the Tibetans are above roughly:

25% of the air molecules in the atmosphere
10% of the air molecules in the atmosphere
75% of the air molecules in the atmosphere
50% of the air molecules in the atmosphere

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