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.

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

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Environmental Science
A food web is

The tropic (feeding) levels that can be observed in an ecosystem
Like a food chain
A set of interconnected food chains, illustrating the tropic relationships among species
The set of prey species that are consumed by animals in an ecosystem

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Environmental Science
At night, low clouds:

Weaken the atmospheric greenhouse effect
Enhance the atmospheric greenhouse effect
Have no effect on the atmospheric greenhouse effect
Are often caused by the atmospheric greenhouse effect

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