Bacteria is one of the main pollutants of concern in our watershed. What is the source of most pathogenic (harmful) bacteria that gets into our waters?
Excess nutrients in the water can be harmful, because they lead to -
Why should we be concerned with runoff water from neighborhood and city streets that goes into storm drains?
How might a concrete septic tank cause problems in the watershed?
High levels of sediment in the water can be harmful to aquatic plants and animals. Which of these human activities can lead to soil erosion?
One of the most effective ways to prevent soil erosion is to -
Which of these choices is a good example of nonpoint source pollution?
Which of these choices is a good example of point source pollution?
Pollution can enter our groundwater when -
Urban and suburban developments lead to more asphalt, concrete, and rooftops, which leads to more -
Which of these choices causes subsidence, when an area of land sinks down over time or suddenly collapses?