Class 7 Science MCQs - Chapter 19
Respiration and Food Energy Quiz Questions & Answers PDF Download - 3
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Respiration and Food Energy Exam Questions and Answers PDF Download: Test 3
Flu is caused by
- bacteria
- viruses
- insects
- dust
Hair in nostrils help to
- inhale easily
- exhale easily
- clean air from dust
- make the air warm
The main cause of 'asthma' is
- tobacco smoke
- pets
- exercise
- laughing
The 'air' is made warm by
- hair in nostrils
- blood capillaries in nostrils
- water in the nose
- mucus in the nostrils
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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