The si unit for expressing gravity is the

M/s^2, its an acceleration towards an object

N/Kg or m/s^2

Hope this helps!

It changes food into energy that the organism can use.

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)