Question

Wool is used in making garments used in winter because

• A. Wool is a good conductor of heat
• B. Wool is a bad conductor of heat
• C. Air, trapped in between the wool fibres, prevents the flow of heat from our body to the cold surroundings.
• D. Both B and C

Answer 1

Answer: (D)

Both B and C

Wool is used in making garments used in winter because wool is bad conductor of heat; it insulates the body from the surrounding. And the air which is trapped in between the wool fibers; prevents the flow of heat from our body to the cool surrounding. As air is the bad conductor of heat too it also insulates the body with wool.