Question

which is not a characteristic of non - point sources of pollution? they come from a wide variety of diffuse sources and are unconstrained or unchannelled in movement. they are caused by rainfall or snowmelt moving over and through the ground, picking up natural and human - made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and even they are confined discharges, and it is easy to measure the constituents, they may be widespread sources such as fertilizers and pesticides from farm fields.

Explanation:

Non - point source pollution comes from diffuse sources, is unconfined, and hard to measure. Confined discharges that are easy to measure are characteristics of point - source pollution.

Answer:

They are confined discharges, and it is easy to measure the constituents.