What is meant by the term "UV"? In your answer, please explain how it impacts humans and what it has to do with the atmosphere.

The term UV stands for Ultraviolet.

Explanation:

Ultraviolet light is a form of electromagnetic radiation which is shorter than that of visible light, but longer than X-rays. This impacts humans because it can provide harmful effects. For example, UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles and leathery skin. They also cause eye problems. However, our atmosphere blocks a lot of the UV rays from the sun which is amazing because if we were every exposed to it, we would die lol

"Ultraviolet light can't be seen by the human eye but is a part of sunlight. It can be harmful to us if we are exposed to it (sunburn!) but it is mostly absorbed by the atmosphere. The presence of UV light in sunlight can be shown by using fluorescing UV-sensitive beads."

Hope that helps!

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation:

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.