Environmental Science
The undesirable change in physical, chemical or biological characteristics of air, land and water is referred as

Ecodestructions
All of these
Pollutants
Pollution

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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
Heat energy from the earth's interior
Convection from a hot surface

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