Question

which of the following is a natural source of particulate matter in the atmosphere? choose 1 answer: a animal grazing b spawning c flooding d wildfires

Explanation:

Wildfires release smoke, ash and other particulate matter into the atmosphere as a natural - occurring event. Animal grazing mainly affects vegetation and soil, spawning is related to reproduction of aquatic organisms and has little to do with atmospheric particulate matter, and flooding is a water - related natural disaster not directly associated with particulate matter in the atmosphere.

Answer:

D. wildfires