Answer:
low, under, beneath, down, or below normal
The variety of organisms that occupy a given region including microscopic protists to large mammals. The region can be a political unit such as a country a geographic feature such as a mountain range or the entire world. The first level of bio diversity is genetic diversity. Next is taxonomic diversity. Also ecological diversity.
It can either be reflected or radiated back into space, it can get absorbed by the atmosphere, or it can reach the ground.
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Your answer is D. Hope this helps!