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.
- What is pulse?
- What happens in small intestine?
- What is bronchitis?
- What is ovule?
- What are companion cells?
- What are properties of blood present in veins?