Which option would generate the least amount of particulate matter?

A nuclear power plant generates the least amount of particulate matter compared to the other options. Nuclear energy production relies on the process of nuclear fission, which does not burn any fossil fuels or organic materials; therefore, it does not emit particulate matter associated with combustion processes. Particulate matter typically results from the burning of materials, such as wood or fossil fuels, which release ash and soot into the atmosphere.

In contrast, a diesel city bus emits particulate matter as a byproduct of fuel combustion. Similarly, a wood burning stove releases particulate matter from burning wood, including soot and ash. Natural prairie wildfires also generate significant amounts of particulate matter due to the combustion of vegetation and organic material, contributing to smoke and ash that are released into the air.

Therefore, the nuclear power plant stands out as the option with the least potential for generating particulate matter, making it a cleaner energy source in terms of air quality impacts related to particulate emissions.