Environmental Science
The lowest temperature that can be attained by evaporating water into the air is known as the:

Heat index
Frost point
Wet-bulb temperature
Minimum temperature
Wind chill temperature

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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?

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

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