Answer:
Explanation:
Ozone is a gas composed of three atoms of oxygen. Ozone occurs both in the Earth's upper atmosphere and at ground the level.Ozone at ground level is such a harmful air pollutant, because of its nasty effects on people and the environment, and it is the main ingredient in a type of air pollutant called “smog."
Answer:
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A virus can be inside a body without showing up
<span>It is called the fimbriae.</span>
the answer is C. decreased variation in tail feather color because no form of the trait is advantageous.
