Answer:
The bacteria might have gotten immune to the hand sanitizer.
Explanation:
While the hand sanitizer kills the bacteria, the bacteria starts to learn how it works and how to react when it needs to go up against it. Think of it this way, the hand sanitizer goes to the bacteria and starts to slap it to kill it, but while it is doing that, the bacteria starts to learn how it works and all of its moves. It then uses it moves against it and becomes a SUPER BACTERIA!!!
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They are called even-aged
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Answer:
Ozone, or trioxygen, is an inorganic molecule with the chemical formula O ₃. It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope O ₂, breaking down in the lower atmosphere to O ₂.Earth's ozone layer has been damaged by well-intentioned chemicals—chlorofluorocarbons, used for refrigerants and aerosol spray-cans—that have the unintended consequence of destroying ozone molecules.
I think from my personal conclusion genders are different because If there was only one gender no new humans or babies could come into the world at all because there wouldn't be any way for them to be created so if we have a boy and girl gender then we can easily make more and more people to come into the world everyday. Hope this helped
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