There are several processes used to explain the removal of dirts or contaminants from surface, but the general name is called Cleaning
Cleaning is an umbrella name that involves the removal of visible soils mater from surfaces, there are other types of cleaning that involves the removal of non-visible matter from surface too e.g sterilisation.
Sterilisation refers to specific action taken to reduce the hazard posed by such contaminants, as opposed to general cleaning.
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A gene mutation can occur because of environmental factors. If a person is exposed to UV lights it can cause a mutation to happen
Answer:
If you usually have a regular cycle, a change in your cycle — such as suddenly having two periods in a month — could indicate a medical condition. Some health conditions cause bleeding that can be mistaken for a period: Pregnancy can cause spotting.
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Answer:
Don't do DUI
Explanation:
You get pulled over. Sorry if you answer does not fit your question. But, You can rewrite your question the correct way..