Do they work you mean?? Different variations of the position of your hands hits different muscle parts. Like doing push-ups with your hands far apart hits more of the chest area. Doing them with your hands close hits more of your triceps. I personally like them close.
Do not leave a baby or young child alone in a room with stairs.
Explanation:
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Filtration, coagulation, settling basins and aeration are some examples of water treatment and is denoted as option A.
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What is Filtration?</h3>
This is a technique which is used to separate solids from a liquid or gas substance.
This alongside others mentioned above are used in treating water to remove contaminants and make it safe for drinking and other uses.
Read more about Water treatment here brainly.com/question/13348717
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