Question

how do woollen cloth keep us warm in winter

Answer 1

The woolen cloth fibres have air between them and air is bad conducter of heat when we loose heat from body it cannot go out

Answer 2

Answer:

Explanation:

i) The woollen clothes are a bad conductor of heat .

ii) Therefore they do not allow the heat from the body to move out in the environment.

iii) As a result ,the air present between the woollen clothes and our body becomes hot and this makes us feel warm.

iv) similarly ,two thin blankets provide more than one thick blanket because air can be trapped between the two thin blankets.