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:
- From where does roots take up oxygen?
- What are root hairs?
- What is semi-permaeable membrane?
- What is chemical process in digestion?
- What is meant by aerobic?
- How are atria and ventricles separated?
