The term convection generally refers to the movement of fluids, meaning liquids and gases, but in the earth sciences, convection also can be used to describe processes that occur in the solid earth. This geologic convection, as it is known, drives the plate movement that is one of the key aspects of plate tectonics.
The recommended range is 45 â 65% of calories as carbohydrate. For example, if you eat 1600 calories per day, and 50% of those calories are carbohydrate, you would eat 200 grams per day. Athletes need to eat at the high end of the carbohydrate range, to fuel training and competition.
How Dietary FATs are good to us: It provides greatest energy source per gram of food give details 1gm of oil gives 9 calories. Fat acts as an insulator and thus maintains body temperature. This is particularly important for people living in cold or extreme cold climates. Fat improves the taste, aroma, texture of the food and also helps in digestion.