Environmental Science
The gas responsible for the greenhouse effect on Venus is:

Oxygen (O2)
Water vapor (H2O)
Ozone (O3)
Nitrogen (N2)
Carbon dioxide (CO2)

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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?

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

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