1.

why does a cotton wool shrink in water?

Answer»

Cotton wool remains fluffy because of air trapped in it. When a lump of cotton wool is dipped in water, the air goes out of the lump. Due to this, the cotton wool shrinks when dipped in water.

Cotton woolremains fluffy because of air trapped in it. When alump of cotton wool isdipped inwater, the air goes out of thelump. Due to this, thecotton wool shrinkswhen dipped inwater.



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