Environmental Science
If the earth's average surface temperature were to increase, the amount of radiation emitted from the earth's surface would ____, and the wavelength of peak emission would shift toward ____ wavelengths.

Decrease, longer
Increase, shorter
Decrease, shorter
Increase, longer

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

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Environmental Science
Which of the following statements is not correct?

The length of human hair changes as the relative humidity changes.
The relative humidity is a measure of the air's actual water vapor content.
During the winter, low relative humidity can irritate the mucus membranes in the nose and throat.
A change in the air temperature can change the relative humidity.

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