Question

explain how air pressure helps plungers in cleaning drains

Answer 1

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━━━━━━━━━━━━━━━━━━━$\mathfrak{\green{Answer.}}$ To create pressure, the plunger has to seal tightly against the toilet opening or sink drain. By tilting the plunger as you put it into the water, the air will be forced out of the bell. With the plunger's cup or bell full of water, you'll force water down onto the blockage when you push on the plunger.
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