Chapter 20: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 20
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MCQ 6: Cold is caused by
MCQ 7: The number of viruses which an average sneeze can spread in 10 meters area, is
MCQ 8: The process of giving out breath is known as
MCQ 9: Every single cell of the body requires
MCQ 10: The carbon dioxide is removed from
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