Digestion of food is an example of decomposition reaction. Why?

Explanation

(i) Decomposition reaction helps all the living matter to return back to nature, after death.
(ii) Management of garbage.
(iii) Photosynthesis `to` decomposition of water.
(iv) Photography `to` decomposition of silver bromide.
(v) Used in chemical industry to obtain elements from complex compounds.
(vi) Decomposition of agricultural waste leads to formation of compost.