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 cold air outside from reaching us.
(D) wool allows heat to enter through it but not to leave it.

Answer 1

Answer:

Woolen Clothes protect us from cold because they are made up of such type of fibre that absorbs heat and transfer it . Due to which we feel warm after wearing the woolen clothes in winter

Answer 2

Answer:

Answer is Option (B)

Explanation:

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