Class 7 Science e-Book's MCQs - Complete
Safe and Drinking Water Quiz App Download & e-Book PDF - 403
Apps:
MCQ 403:
Fish in the ponds and lakes die because the algae
- takes all the minerals from water
- takes all the oxygen from water
- prevents sunlight to enter water
- prevent from respiring
b
Class 7 Science App & e-Book Tests PDF Download
Solids Liquids and Gases MCQs
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Refraction of Light MCQs
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7th Grade Science MCQs eBook Download
8th Grade Science Test Questions
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Class 7 Science Quiz with Answers
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