Class 7 Science MCQs - Chapter 20
Respiration and Food Energy Quiz Questions and Answers PDF - 3
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Respiration and Food Energy Questions & Answers PDF Download: MCQ Quiz 3
MCQ 11: Flu is caused by
- bacteria
- viruses
- insects
- dust
MCQ 12: Hair in nostrils help to
- inhale easily
- exhale easily
- clean air from dust
- make the air warm
MCQ 13: The main cause of 'asthma' is
- tobacco smoke
- pets
- exercise
- laughing
MCQ 14: The 'air' is made warm by
- hair in nostrils
- blood capillaries in nostrils
- water in the nose
- mucus in the nostrils
MCQ 15: The respiration that does not involve the presence of oxygen is known as
- aerobic respiration
- anaerobic respiration
- passive Respiration
- active respiration
Class 7 Science Mock Tests
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