1.

Classify the following as exothermic and endothermic reactions: (a) Photosynthesis (b) Burning of natural gas(c) Electrolysis(d) Reaction of Iron oxide with aluminium.(e) Dissolution of ammonium chloride in water.(f) Decomposition of ferrous sulphate.​

Answer»

-step explanation:Compost is prepared from PLANT and animal WASTES, therefore, it easily gets decomposed. It does not add any harmful CHEMICALS to the soil, whereas an excessive use of chemical fertilizers causes soil and water POLLUTION.



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