Question

Blankets made of wool protect us effectively from cold because

a. wool is a hot material which generates heat and keep us warm

b. the air trapped by the wool prevents body heat from leaving

c. the air in the wool prevents the air outside from reaching us

d. wool allow heat to enter through it but not to leave it

Answer 1

blankets made of wool protect us from cold because the air trapped by the wool prevent body heat from leaving
hope this helps you

Answer 2

Answer:

Blankets made of wool protect us effectively from cold because-

b. The air trapped by the wool prevents body heat from leaving.

Explanation:

• Blankets are generally made by wool to protect us effectively from cold because- wool traps heat very effectively.
• Wool is the type of fabric which is obtained from animal and it have several layers.
• It captured the heat between its layers.

• As wool is bad conductor of heat.
• Wool produces its own heat from the layers. And this results in keeping us warm when we wear blankets.
• Warm air can be trapped between the different layers of wool for long time. And then this make wool very suitable and preferred material for clothes and blankets in colder season or winter.
• Therefore option B is correct answer.

Hence, option B is correct answer.

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