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

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

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Environmental Science
When a liquid thermometer is held in direct sunlight,

It will measure a much lower temperature than that of the air
It will accurately measure the air temperature
It will measure the temperature of the sun rather than the air
It will measure a much higher temperature than that of the air

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