Environmental Science
What is "temporary threshold shift"?

inaudible noise
Hearing loss due to excessive noise
Noise that is untolerable
Tolerable noise

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Environmental Science
An important reason for the large daily temperature range over deserts is:

Free convection cells are unable to form above the hot desert ground
Dry air is a very poor heat conductor
The light-colored sand radiates heat very rapidly at night
The ozone content of desert air is very low
There is little water vapor in the air to absorb and re-radiate infrared radiation

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