what are fertilisers ? give example

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Solution

Fertilisers are substances which are rich in inorganic nutrients. Fertilisers provide specific nutrients like nitrogen and potassium to soil thus increase the fertility of the soil. Substances like urea, ammonium sulphate, potassium chloride, potassium sulphate, NPK (nitrogen, phosphorus, and potassium) etc. are various types of fertilisers used by farmers.

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