Environmental Science
How much radiant energy will an object emit if its temperature is at absolute zero?

The maximum theoretical amount
Depends on the chemical composition of the object
The same as it would at any other temperature
None

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Environmental Science
Our seasons are caused by:

The changing distance between the earth and the sun
All of these
Only (b) and (c) are correct
The angle at which sunlight reaches the earth
The length of the daylight hours

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