Cotton is solid but it floats on water. Why?

1.	Cotton is solid but it floats on water. Why?
Answer» Because it has lesser density than Water Because it has a space between them and it contains very small particles, so that it float on water easily Because of the small pores present on the surface of cotton. The air get filled in this pores making it light weighted. Because ot has small pores on it for the passage of air.

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