Answer and explanation :
we need energy because without energy we can not do any thing energy is necessary for doing any work as like petrol or diesel for driving our vehicles as like we need energy for doing any physical or mental work energy is the fuel of our body without it we can not do anything. It fuels the body internal function repair and build the cells and support the external activities that help our body to do any work
Answer:
Our body needs energy to survive and to maintain the internal main function of our body and help to repair the external functions or activities for enable to interact with physical world. It also help our body to maintain the body tissues and cells. Nutrients, food and water are the main essential things which help our body to produced energy. Energy are supplied in our body in the formed of ATP(adenosine triphosphate).
Main nutrients which help our body to produced energy are:
