Question

Woollen clothes keep the body warm because the wool:
A. decreases the temperature of the body
B. is a good conductor of heat
C. increases the temperature of the body
D. is a bad conductor of heat

Answer 1

Hint:Fabrics are a woven material, such as textile or other materials. They are used to cover skin and hair, and protect them from weather.

Complete answer:
You wear different types of clothes in different seasons. For example, the clothes that you wear in summer are different from the clothes you wear in winter. In summer, you wear cotton shirts. Air can pass through cotton clothes so the skin can breathe. Due to which the sweat dries easily. So, the skin remains cool and dry.
a. Cotton clothes are resistant to dust and mites. This prevents skin irritation and infections during summer.
b. During monsoon, you wear raincoats as water cannot pass through raincoats.
c. The type of cloth dries faster in rainy season is synthetic fiber
d. Woolen clothes contain fibers. Woolen clothes act as good insulation against the wind. You can vary the thickness of material depending on the intensity of the cold.
e. During winter, you wear woolen clothes and your clothes cover almost the entire body.
Woollen clothes keep the body warm because the wool is a bad conductor of heat.
Thus, with change in season, you change the fabric of clothes and the kind of clothes.

Hence, the option (D) is the correct option.

Note:
Wool is a textile fibre. It is obtained from animal sources such as sheep, goat etc. Proteins and small amounts of lipids are present in wool.