NPK fertiliser supplies nitrogen, phosphorus and _____ to the crops.
A
potassium
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B
magnesium
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C
sodium
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D
calcium
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Solution
The correct option is A potassium ∙ Chemical fertilisers are partially or completely synthetic in origin and play a very important role in food production. They supply the crops with required nutrients. ∙ NPK is a type of chemical fertiliser. NPK supplies nitrogen, phosphorous, and potassium to the crops.