Solution of Starch(A), glucose(B), sugar(C), milk powder(D) are taken in different test tubes. Which solution turns blue when iodine solution is added into

_______ is useful in keeping our muscles, bones and joints in good condition.

________is the immediate care given to a victim of an accident or sudden illness before seeking professionals help.

A __________ cream should be applied over the affected area.

Energy requirement of a boy aged 10 is 2190 K daily. If he sleeps for 1 hour daily, how much energy (in K.cal) is lost from him every day for his sleeping.

The carbohydrate which is difficult to be digested by humans:

Which mineral is needed for the synthesis of Haemoglobin?

_______mainly present in automobile exhaust.