Transformer works on which principle?

The process of transferring of charge from a charged object to the earth is called ______________.

Which organ is responsible for the removal of nitrogenous waste from the human body?

Which of the following is not an infectious disease?

Which organ is responsible for activity and hand-eye coordination in human body?

Which organ cannot be transplanted in human body?

The velocity of sound in air is approx.

Ice is packed in sawdust because___