Environmental Science
The sun emits its greatest intensity of radiation in:

The ultraviolet portion of the spectrum
The x-ray portion of the spectrum
The visible portion of the spectrum
The infrared portion of the spectrum

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Environmental Science
Which one is true?

commensalism when the interaction is useful to both the populations
symbiosis when the interaction is useful to both the populations
commensalism when none of the interacting populations affect each other
symbiosis when neither population affects each other

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

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