Class 9 Biology e-Book's MCQs - Complete
Importance of Fertilizers Quiz App Download (Free) & e-Book - 403
Apps:
MCQ:
The greenhouse gas which can be emitted from the storage of nitrogen-based fertilizers is
- nitrous oxide
- nitric oxide
- oxygen
- hydroxide
a
Class 9 Biology App & e-Book Tests PDF Download
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9th Grade Biology MCQs eBook Download
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