In general, foods are made up of carbohydrates, proteins, and fats, each of which provide a different number of calories: 1  Carbohydrates provide 4 calories per gram. 2  Proteins provide 4 calories per gram. 3  Fats provide 9 calories per gram.
Importance of Water. Water is used for various important purposes: Water in Agriculture. Water plays the most important role in agriculture. Agriculture is impossible without irrigation throughout the crop season. Irrigation ensures proper plant growth.
Benefits of Drinking Hot Water. Water forms a very crucial part of human life in ways more than one. Not only is 70 percent of the human body made up of water, but 75 percent of Mother Earth is also water. If you look around you, you will see that all living forms contain water.