Question

Woolen clothes are mostly worn in ____________.
a. Rainy days
b. Summer days and cloudy days
c. Cold days
d. Cloudy days and rainy days

Answer 1

Hint: Woolen clothes are worn during cold days. They keep us warm and protect us from getting in contact with cold air.

Complete step by step answer:
Woolen clothes are usually worn in the winter season because they keep us warm and protect us from cold weather. The woolen clothes trap air between them and our body. The heat produced by our body gets trapped inside our woolen clothes. The woolen clothes and the air trapped in between the woolen clothes forms an insulating cover, which do not let the heat to escape, thus making us feel warmer even in the cold environment.

Additional information:
Wool is a bad conductor of heat as compared to cotton clothes. Cotton clothes have very less space in between their fibers and also are very thin, due to which they are unable to trap air which acts as an insulating sheath for escaping heat. That is why people prefer cotton clothes in the summer season over woolen or nylon fabric.

Note: Our body temperature is nearly 37°C. During winters surrounding temperature is low. Heat transfer occurs from high temperature to low temperature through the medium (air). Thus to prevent the heat loss from the body, woolen clothes trap the air and prevent it.