give reason for the following: 1) respiration is an endothermic reaction. 2) photo chemical decomposition reaction find application in photography.
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1. respiration is considered as exothermic reaction because energy is released in this process glucose combines with oxygen present in our cells to form carbon dioxide and water along with energy
2. photography is based on photo chemical process when a picture is taken the silver salt in the photographic film absorbed light and chemically change into metallic silver which produce a dark image on the negative when the film is developed.
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