Class 7 Science Study App | Ammonia and Fertilizers MCQ e-Book PDF
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Class 7 Science MCQs – Certification Test 419

Ammonia and Fertilizers MCQ (Question 419) – Study App & e-Book Download

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MCQ 419: Ammonia fertilizers are made by two components, they are:

  1. ammonia and hydrogen
  2. ammonia and nitric acid
  3. nitrogen and hydrogen
  4. nitrogen and water
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