Question

Wildfires are _______.

a.
a human source of air pollution
b.
a natural source of air pollution
c.
both a natural and human source of air pollution
d.
none of the above

Answer 1

I think it’s c, because wildfires can occur naturally and also unnaturally (by human action)

Answer 2

c. both a natural and human source of air pollution

Step-by-step explanation:

Wildfires can be produced both by humans (on purpose or not), and naturally (for example when a light strikes a tree).

The smoke produced (despite the origin of the wildfire) pollutes the surrounding air.