Question

Cotton garments cannot keep us as warm as a woolen sweater can.why?

Answer 1

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Cotton clothes are thin and do not have spaces in their fabrics through which air can be trapped to keep us warm. So cotton clothes do not prevent heat coming out of our body. Woolens create a barrier to this and allow the body heat to stay in closer to the skin.

Explanation:

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Answer 2

Explanation: This is because the cotton sweaters are thinner and therefore have less air spaces. Air acts as an insulator therefore trapping heat. In a woolen sweater, it is more thicker and therefore the air spaces are more thereby offering more heat to be trapped.

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