Environmental Science
Which statement(s) below is/are correct?

All of these
Valleys are more susceptible to radiation fog than hill tops
Fog can be composed of ice crystals
Without the summer fog along the coast of California, redwoods would not grow well there

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Environmental Science
The atmosphere near the earth's surface is "heated from below." Which of the following does not significantly contribute to this heating?

Absorption of infrared energy that has been radiated from the surface
Conduction of heat upward from a hot surface
Convection from a hot surface
Heat energy from the earth's interior

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