Free MCQsLearn App Download - Topic: Food Energy and Respiration Subtopic: Diseases of the respiratory system
Why should tissue paper or handkerchief used?
Answer: Tissue or handkerchief should be used to cover your mouth and nose in order to prevent the spread of 100,000 viruses that can reach up to a distance of 10 meters.
Learn also:
- How does blood flow in veins?
- Why is thrombosis dangerous?
- Why is cross pollination better?
- What is yellow pus?
- What is an artery?
- Where is faeces stored?