Ch. 20 – Human Impact on the Environment
1. We took ch. 18-19 quiz
2. We went over the notes
In this unit we will look at several environmental problems:
Introduced Species: humans move a species from its original habitat and move it to a new geographic region, and then the species outcompete native species.
Toxic chemical: Examples are mercury, DDT and PCBs. They are stored in the fats and biological magnification occurs,
Ozone Layer Depletion
Biodiversity crisis: a decline in Earth`s great variety of life in ecosystems, of species, and of genetic variation within each species.
3 main causes:
1. Habitat Destruction
2. Introduced species
Environmental Action Simulation pg. 73-75
The main purpose was to see what programs that your group would pick if you had $20,000 to spend as part of the GCEAO (Granite City Environmental Action Organization).The roles were; Secretary, Reader/Leader, Community Members and Activists. Once your group spent all of your $20,000, then your group must write a paper explaining which organization got your money and why.
1. Read ch. 20
2. Oil spill paper- due 9/22
Next Scribe: CJ