Environmental Science
The slow rate of decomposition of fallen logs in nature is due to their

low cellulose content
low moisture content
poor nitrogen content
anaerobic environment around them

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Environmental Science
The earth's radiative equilibrium temperature is:

The temperature at which the earth is absorbing solar radiation and emitting infrared radiation at equal rates
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 rates of evaporation and condensation on the earth are in balance

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