Final answer:
Asthma attacks are often triggered by environmental factors such as air pollution, allergens, respiratory infection, changes in humidity or temperature, and exercise.
Step-by-step explanation:
Asthma attacks are acute episodes in which an asthma sufferer experiences the full range of symptoms. Asthma exacerbation is often triggered by environmental factors, such as air pollution, allergens, respiratory infection, sudden changes in either humidity or temperature, and exercise.
Certain regions and neighborhoods are known for having notably high rates of asthma and related diseases due to high rates of concentrated pollution and low air quality.