Question

env.10 - which of the following is an example of nonpoint - source pollution? a container leaking chemicals rain washing salt off the roads a pipe releasing hot water a boat leaking motor oil env.10 - some rivers and lakes near large farms are heated. what is the most likely reason for this? excessive use of fertilizers on farms decaying animal carcasses trash dumping into rivers larger tractors and farm equipment env.11 - this map shows the elevation of land around the chesapeake bay, and the bathymetry of the chesapeake bay and atlantic ocean. what color shows land that will be affected by sea level rise?

Explanation:

1. For the first question about non - point source pollution: Non - point source pollution comes from diffuse sources. Rain washing salt off the roads is a non - point source as it is not from a single, identifiable source like the other options which are point sources (a container, a pipe, a boat).
2. For the second question about the reason for rivers and lakes near large farms being affected: Excessive use of fertilizers on farms can lead to nutrient runoff into nearby water bodies, causing eutrophication and other water quality issues. Decaying animal carcasses are usually not a widespread cause compared to fertilizer runoff, trash dumping is a point - source like activity in some cases and larger tractors and farm equipment do not directly contaminate water bodies in the same way as fertilizers.
3. Without seeing the actual map for the third question about the color indicating land affected by sea - level rise, we cannot answer it. But generally, lower - elevation areas are affected, and on elevation maps, these are often shown in blue or green colors representing lower altitudes.

Answer:

1. rain washing salt off the roads
2. excessive use of fertilizers on farms
3. Cannot be answered without the map.