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 our lifeline that bathes us and feeds us. In ancient cultures water represented the very essence of life. The Romans were the first to pipe water into their growing cities, especially with their aqueducts.
An essay or paper on The Importance of Water Resources. Water is singly the most important element to the world as a whole. It is the lifeblood of the environment, essential to the survival of all living things whether it is a plant, an animal or humans (Environment Canada, 1996).