Class 9 Biology Online Tests
Importance of Fertilizers MCQ (Multiple Choice Questions) PDF Download
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Importance of Fertilizers MCQs PDF: Questions Answers Download
If the nitrogen is the main element of fertilizers then the fertilizers are classified as
- structural fertilizers
- non-structural fertilizers
- nitrogen fertilizers
- respiratory fertilizers
The increased ratio of chemical nutrients in the ecosystem is classified as
- triplication
- eutrophication
- crystallization
- distillation
The excess of nitrogen fertilizers leads to
- pest problems
- growth problems
- fruiting problems
- flowering problems
The greenhouse gas which can be emitted from the storage of nitrogen-based fertilizers is
- nitrous oxide
- nitric oxide
- oxygen
- hydroxide
The organic fertilizers can be derived from
- animal materials only
- plant materials only
- carbon materials
- animal and plant materials
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