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Urea, ammonium sulphate, super phosphate and potash are examples of:

APesticides
BFertilisers
CManure types
DWeedicides
Answer & Solution
Correct answer: B. Fertilisers
1. They are rich in particular nutrients. 2. They are fertilisers made in factories. 3. Excess use makes soil less fertile. _Source: syllabus Science, Chapter 1, Crop Production and Management._
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