Question

it is best to say that most human sources of air pollution result from ______
a. forestry management
b. fuel burning
c. heating devices
d. vehicle exhaust

please select the best answer from the choices provided

○ a
○ b
○ c
○ d

Explanation:

Most human-caused air pollution stems from fuel burning, as this category includes vehicle exhaust, heating devices, industrial combustion, and other major pollution sources, making it the broadest and most accurate overarching source among the options.

Answer:

b. fuel burning