Environmental Science
The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?

High albedo of clouds, low albedo of water
Low albedo of clouds, low albedo of water
Low albedo of clouds, high albedo of water
High albedo of clouds, high albedo of water

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

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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:

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

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