A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because

Q. A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because:

A.            friction between the layers of newspaper produces heat.

B.            air trapped between the layers of newspaper is a bad conductor of heat.

C.            newspaper is a conductor of heat.

D.            newspaper is at a higher temperature than the temperature of the surroundiong.

Answer: air trapped between the layers of newspaper is a bad conductor of heat.