Environmental Science
The atmospheric greenhouse effect is produced mainly by the:

Absorption and re-emission of ultraviolet radiation by the atmosphere
Absorption and re-emission of visible light by clouds
Absorption and re-emission of visible light by the atmosphere
Absorption and re-emission of visible light by the ground
Absorption and re-emission of infrared radiation by the atmosphere

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Environmental Science
What is the cause of the Exxon Valdez?

Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected.
a plane which crashed and caused death of human life
a ship which wrecked on the coast of India
none of these.

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