NEET BIOLOGY

Detailed explanation-1: -Nonpoint Source (NPS) Pollution, on the other hand, is a more difficult type of pollution to identify and clean up. As the name suggests, cannot be pinpointed to one distinct location or source. NPS pollution refers to both water and air pollution from diffuse sources.

Detailed explanation-2: -Carbon Monoxide Nationwide, cars and trucks contribute to more than 50% of all emissions; in cities like Los Angeles, where traffic density is high, their contribution is even greater.

Detailed explanation-3: -Nonpoint source pollution comes from oil, pet waste, pesticide, herbicide, fertilizer, road salt, bacteria, sediment, and any other contaminant that ends up on the ground naturally or from human activity.

Detailed explanation-4: -What causes air pollution in cities such as Los Angeles? Air pollution in cities is caused by emissions from buildings and vehicles. Burning materials create emissions that can cause air pollution.