Class 7 Science MCQs – Certification Test 83

Respiratory Diseases MCQ (Question 83) – App & e-Book Download

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MCQ: 83

Asthma can get worse due to

bacteria
viruses
insects
dust

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The App: Respiratory Diseases MCQ App to study Respiratory Diseases Notes, 7th Grade Science MCQ App, and Earth Science MCQ App. The "7th Grade Science MCQ App" Download: Free Respiratory Diseases Apps (Android & iOS) for distance learning. Download App Store & Play Store Study Apps with all functionalities for homeschool certificate courses.