Question

39. Explain why
(a) we wear woolen clothes in winter ?
(b) the water pipes are covered with cotton during
very cold weather ?
​

Answer 1

Answer:

a) Wool and air both are bad conductors of heat. Therefore in winter, we wear woolen clothes as they check the conduction of heat from the body to the surroundings and thus keeps the body warm.

b) During very cold weather, the water pipes are covered with cotton. The cotton has air trapped in its fine pores.

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Answer 2

Answer:

A.

we wear woolen clothes in winter because it will warm us in cold winter days . many woolen clothes are bright in colours because this clothes absorb sunlight and it will protect from cold whether...

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