Chapter 7: Class 8 Science Exam Tests
Class 8 Science MCQs - Chapter 7
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MCQ 1: The dodo became extinct in
MCQ 2: Smoke particles and harmful gases released in air produces a
MCQ 3: Environment can be kept clean and green by using
MCQ 4: Fertilizers supports growth of
MCQ 5: If untreated waste water will be directly spill in to rivers, sea and lakes it may
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