On a cold day, snakes usually lie very still and eat little or nothing while birds usually move around and eat a lot of food. which statement explains this?

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

The least penetrating form of radiation is

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false