A watershed is the area of land where all of the water drains off and eventually combines at a central point. As water runs off
it picks up different types of surface pollution left over from agricultural, industrial, commercial, and other types of human activity. Why does the pollution in a watershed have such a heavy impact on its inhabitants? 1. pollution does not affect the inhabitants of a watershed
2. the water combines and the pollutants becomes less concentrated
3. the water combines and the pollutants becomes more concentrated
4. the species that inhabit the watershed must have the pollution in order to survive
I took the test and got it correct and the explanation is that the watershed will flow into more water which spreads that pollution and as it flows could pick up more pollution.
Gas pressure is caused by the force exerted by gas molecules colliding with the surfaces of objects (Figure 5.2. 1). Although the force of each collision is very small, any surface of appreciable area experiences a large number of collisions in a short time, which can result in a high pressure.
A source region must have certain temperature and humidity properties that can remain fixed for a substantial length of time to affect air masses above it. above it. Air mass source regions occur only in the high or low latitudes; middle latitudes are too variable.
