Question

Which types of clothes are more suitable for the winter season?
A.)Cotton clothes
B.)Sweater
C.)Raincoats
D.)All of the above

Answer 1

Hint: In winters, it is essential that our body retains its warmth and not lose heat to the outside cold atmosphere. If this happens we will feel cold. Hence, in winters, we wear clothes that can trap the heat of our body inside and not let it escape to the outside atmosphere.

Complete step by step answer:
We feel cold in the winter season because our body loses its warmth due to the transfer of thermal energy from the body to the outside cold atmosphere. Therefore, we should wear such types of clothing that can prevent this loss of our body heat to the surroundings.

Sweaters made of wool can do this job perfectly. Wool has the ability to trap air inside it and not let it escape. This is because wool does not have too many pores in its structure from where air can escape. Therefore, a layer of air is trapped between our body and the woolen sweater. Since air is a bad conductor of heat, the heat from our body cannot escape to the outside atmosphere and hence, we remain warm. This layer of air acts as an insulator that helps us to retain our body heat.

Hence, the correct option is B) Sweater.

Note: The exact opposite of woolen clothes is required in summers. Cotton clothes are used in summers that absorb the moisture and sweat from our body and let it evaporate through the pores in our clothes. Since, evaporation has a cooling effect, we lose excess heat to the surroundings and our body feels cool.

Raincoats are made of waterproof materials like polyurethane that do not absorb or let water sit on the surface but repel it. They do not let water seep into them and hence, protect us from getting wet in the rainy season.