The process of food and its utilization by the body of an organism is called nutrition.
The mode of nutrition in which a living organism prepares its food is called autotrophic nutrition.
In this mode of nutrition, organisms prepare their food from simple inorganic matter such as water, mineral salts, and carbon dioxide in the presence of sunlight.
Example of autotrophic nutrition:
Green plants are an example of autotrophic nutrition as they prepare their food in the presence of sunlight.
The process by which green plants produce their food in the presence of sunlight and chlorophyll is known as photosynthesis.
Photosynthesis converts solar energy into chemical energy.