Topic: Food Energy and Respiration Subtopic: Diseases of the respiratory system
What gas is present in cigarette?
Answer: There are two different harmful gases present in the cigarette. One of these is Carbon dioxide and the other one is Carbon monoxide.
- How does mineral salts enter roots?
- Are varicose veins dangerous?
- What is job of xylem?
- What is quantity of white blood cells in blood?
- What are effects of Nicotine?
- Why is blood important?