Answer:
Explanation:
1. Oxidation-reduction reaction: An oxidation-reduction reaction (also known simply as redox reaction) is one of the type of chemical reaction, it involves a transfer of electrons between two species.
2. In plants light is absorbed by chlorophyll which causes transfer of electron from water, and the final acceptor of electron is oxygen. Â
3.Plants takes carbohydrates from environment and water from earth, and with the help of sun-light they make carbohydrates and oxygen, so they are called autotrophs.