Question

what is Reduction reaction?​

Answer 1

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.

Answer 2

Reduction involves a half-reaction in which a chemical species decreases its oxidation number, usually by gaining electrons.

Reduction reaction is considered as the opposite process of oxidation , ie , loss of oxygen.