Environmental Science
Frost typically forms on the inside of a windowpane (rather than the outside) because:

There is less water vapor touching the inside of the pane
The inside of the pane is colder than the outside
None of these
There is more water vapor touching the inside of the pane

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

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