Environmental Science
The earth's radiative equilibrium temperature is:

The temperature at which rates of evaporation and condensation on the earth are in balance
The average temperature the earth must maintain to prevent the oceans from freezing solid
The temperature at which the earth is radiating energy at maximum intensity
The temperature at which the earth is absorbing solar radiation and emitting infrared radiation at equal rates

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Environmental Science
What is the cause of the Exxon Valdez?

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

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