Situation 3:
A healthy Grade 7 student named Bon Francis, came from a far-flung hometown
from Barangay Alimatoc. Suddenly he moved to the city because of his schooling.
Upon arrival to the city of Makati, he noticed a big difference of the environment where
he came from. He saw many tall buildings, cars, jeepneys, motorcycles and other
vehicles. He also observed that most vehicles emit black smoke from its exhaust which
he learned to cause smoke belching. Smoke is usually thick enough to pollute the air
and reduce visibility of the commuters and operators. Two days later, he felt that his
body weakened and he started coughing and sneezing and had a little fever.
5. What could be the effect of air pollution to Bon Francis' body?
6. In general, what determines the type of biotic factors that thrives in an ecosystem?​