C, Mesopotamia had silt that came from rivers, making their soil very fertile.
Answer:
Ultraviolet radiation and Infrared light
Explanation:
There is a low energy of the ultraviolet spectrum that reaches the surface of the Earth and is the one that causes sunburns and make it necessary to wear sunglasses. Also, infrared radiation enters the troposophere and is the one that warms the Earth surface.
Answer:
I believe that the answer will be 'match' each federal dollar
Explanation: