University:
Blythewood High School
Course:
Biology
Academic year:

2025
Views:

241

Pages:

27
Author:

Sujatha Vimal

A watershed is an area of land that contains a common set of streams and rivers that all drain into a single body of water.  Point sources discharge pollutants at specific locations through drainpipes, ditches, or sewer lines into bodies of surface water. ▪ These sources are easy to identify, monitor, & regulate.  Non-point sources are scattered & diffuse & can’t be traced to any single site of discharge. ▪ from croplands, livestock feedlots, etc. ▪ It is difficult & expensive to identify & control these discharges from diffuse sources Pervious Impervious  Eutrophication is an excessive richness of nutrients in a body of water, due to the runoff from land, which causes a dense growth of algae and the death of animal life from a lack of oxygen.   Hypoxic – “low-oxygen” Dead Zones are hypoxic areas in the world’s oceans and other bodies of water, caused by excessive nutrient pollution runoff from human activities.      Watch the short video and read How Does Storm Water Affect the Chesapeake Bay from the Chesapeake Bay Program’s website. Take notes including important vocabulary. Write a summary Submit your summary on Canvas Assignment (Formative Assessment) “Summarizing the effects of Storm Water on the Bay”          Watershed Pervious Impervious Run-off Storm drain Erosion Turbidity Qualitative data Quantitative data           macroinvertebrate Eutrophication Algal bloom Hypoxic/apoxic Pont source/nonpoint source Embeddedness Riparian buffer Advocacy Rain garden Stencil