Topic: Food Energy and Respiration Subtopic: Diseases of the respiratory system
What are some major causes of asthma?
Answer: Some major causes of asthma include pets, tobacco smoke, cold air and even laughing and exercising can cause asthma to an ordinary person.
Learn also:
- What is major component of respiration?
- How are small molecules transported?
- How is deoxygenated blood pumped to lungs?
- Where is blood taken after lungs?
- What is active transport?
- What are antibodies?
