Environmental Science
The main reason why vegetables take longer to cook in boiling water at high altitudes is because:

Saturation vapor pressure decreases with increasing altitude
The temperature of the boiling water decreases with increasing altitude
There is less oxygen in the air at high altitude
Water boils at a higher temperature with higher altitude

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Environmental Science
The earth's radiative equilibrium temperature is:

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
The average temperature the earth must maintain to prevent the oceans from freezing solid
The temperature at which rates of evaporation and condensation on the earth are in balance

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Environmental Science
In the food relationship where the lion eats the wild beast, and the wild beast eats plants

The lion is the prey and the wilde beast is the predator
The lion is the secondary consumer and the wilde beast is the primary consumer
The lion is the primary consumer and the wilde beast is the secondary consumer
The lion is the predator and the wilde beast is the prey

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Environmental Science
Frost forms when:

The dew point is 32oF or below.
Objects on the ground cool below the dew point temperature.
Water vapor changes into ice without first becoming a liquid.
All of these

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