Which of the following states that green plants produce their own food?

The correct choice is photosynthesis, which is the process through which green plants, and some other organisms, convert sunlight into chemical energy. During photosynthesis, plants take in carbon dioxide from the air and water from the soil, using sunlight as energy to transform these raw materials into glucose (a type of sugar) and oxygen. The glucose produced serves as food for the plant, allowing it to grow, develop, and perform various functions. Additionally, the oxygen released during photosynthesis benefits other living organisms, making this process crucial for life on Earth.

Cellular respiration is a different process where organisms, including plants, use oxygen to break down glucose into energy, carbon dioxide, and water. This is not the method by which plants produce their food. Decomposition refers to the breakdown of dead organic material by decomposers, returning nutrients to the soil rather than creating food. Pollination involves the transfer of pollen from one flower to another for reproduction, which is unrelated to how plants produce their food.