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.
- Why is iron important?
- What is diffusion?
- What is pollination?
- How is heart transplant done?
- What is absorbed in large intestine?
- Where does respiration take place?
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