Kiera's asthma attacks increased substantially after she moved with her family to a big city.What is the most probable explanation for the worsening of Kiera's asthma?
A)high temperatures in the summer
B)low humidity
C)lack of exercise
D)high degree of pollution

Question

Quizplus · Accepted Answer

High degree of pollution is known to exacerbate asthma symptoms, and big cities are often associated with elevated levels of air pollution.

Kiera's Asthma Attacks Increased Substantially After She Moved with Her