Which of the following statements is correct?

Plants use chemical substances like carbon dioxide and nitrogen derived from the atmosphere, for the synthesis of food.

Using carbon dioxide as a source of energy, plants convert simple substances into complex food.

Complex chemical substances such as chlorophyll and proteins are the products of photosynthesis.

Solar energy is stored in the form of food in the leaves with the help of stomata.

The presence of starch in leaves indicates the occurrence of photosynthesis.