Environmental Science
If the amount of energy lost by the earth to space each year were not approximately equal to that received:

The atmosphere's average temperature would change
The mass of the atmosphere would change
The sun's output would change
The length of the year would change

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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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