Environmental Science
Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35o F. The most likely reason for this apparent discrepancy is that:

The thermometer was read before the minimum temperature was reached for that day
The thermometer was read incorrectly
Temperature readings are taken in instrument shelters more than 5 feet above the ground
The thermometer was in error
The newspaper reported the wrong temperature

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Environmental Science
Suppose it is a winter night and at about 11 p.m., the air cools to the dew-point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point temperature will probably:

Decrease as the air becomes moister
Decrease as the air becomes drier
Increase as the air becomes moister
Increase as the air becomes drier

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Environmental Science
The most important reason why summers in the Southern Hemisphere are not warmer than summers in the Northern Hemisphere is that:

The sun's energy is less intense in the Southern Hemisphere
The earth is closer to the sun in January
Over 80% of the Southern Hemisphere is covered with water
The earth is farther from the sun in July

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