Class 7 Science Tests
Safe and Drinking Water MCQ Quiz PDF Download
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Class 7 Science: Safe and Drinking Water MCQs PDF Download
MCQ: Oil can be poison for
MCQ: When algae grows on the surface of water, it prevents
MCQ: The poison gets more concentrated as it moves through
MCQ: Skin diseases, eye infections and diarrhea are the examples of
MCQ: Fish in the ponds and lakes die because the algae
Practice Tests: Class 7 Science Exam Prep
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