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.
- How are gases transported?
- What is mechanical process in digestion?
- What is anther and what does it contain?
- What is our body made up of?
- What is carpel?
- How are gases exchanged in plants?