Question

Why does a lump of cotton wool shirk in water?
Tell the answer by yourself no cheating no copy and pasting
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Answer 1

Explanation:

A lump of cotton wool has a lot of air trapped inside the space present in its fibers. When this lump of cotton is immersed in water, all the air is replaced by water. Due to this, the cotton lump shrinks down

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Answer 2

Answer:

because the cotton absorb water and air mix in water