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MCQs on Human Activities and Ecosystem Quiz PDF Download
MCQ. Dodo became extinct in
MCQ. Smoke particles and harmful gases released in air produces a
MCQ. Fertilizers supports growth of
- fruit plants
MCQ. If untreated waste water will be directly spill in to rivers, sea and lakes it may
- spread diseases
- all of them
MCQ. When forests are cleared on a very large scale by cutting or burning them down it is