Environmental Science
Heat is energy in the process of being transferred from:

Regions of low density toward regions of high density
High pressure to low pressure
Hot objects to cold objects
Low pressure to high pressure
Cold objects to hot objects

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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?

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

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