Choose the correct statement (a) Two thinwoolen blankets keep ou body warmer than a single equally thick woolen blanket (b) Mud houses with thatcvhed roofs keep warm in summer and cool in winter as compared to concrete housed

Choose the correct statement (a) Two thinwoolen blankets keep ou body

1.	Choose the correct statement (a) Two thinwoolen blankets keep ou body warmer than a single equally thick woolen blanket (b) Mud houses with thatcvhed roofs keep warm in summer and cool in winter as compared to concrete housed
Answer» only a only b both a and b none of these Solution :Two thin woolen blanker are warmer than a THICK woolen blanket because there is an etra layer of air trapped between thin BLANKETS which acts as and insultort and does not ALLOW the HEAT form the body to flow out .mud houses with thatched rofs keep cool in summer and warm in winter as compareed to convretehouses because the thatched roof contains a large AMOUNT of trapped air . Hence in summer the heat form insie does not flow out. Thus they remain cool in summer and warm in winter