What is the law of conservation of energy in simplest terms.

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. Hope this is simple :)

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.