Answer: The radiation of the Sun's electromagnetic waves.
Explanation: The Earth's surface radiates energy back into the atmosphere. Then Gases in the atmosphere radiate heat back to the surface..:)
It is called an unfunded mandate, when the federal government gov. compels state governments to obey costly regulations, but does not reimburse those costs.
I would say either C or D, hope I helped!
Answer:
No, the greeks and romans did perhaps invent the basis of alot of the stuff we use to day but they did not invent everything
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-Todo <3