7th Grade

I did not get the notes posted last night. Confrences last a bit longer than I was expecting. I will not hold you accountable for the notes tomorrow in class, however I will still expect to see them in your notebook come Monday when we test over Chapter 5. Below are the Section 3 notes I promised you.

Mr. C

People’s Effect on the Environment
Chapter 5
Section 3

First Level Activities
First-level activities- direct interaction with raw materials, provide food, and resources that people need to live

Creating farmland
Cut down forests
Drained swampland
Destroying habitats for countless species of animals

Environmental Challenges
Deforestation- loss of forest cover in a region
Deforestation can lead to the loss of Biodiversity- richness of different kinds of living things
Fertilizers and chemicals increase yield, but has negative effects on water supplies
How do we feed the world but be environmentally friendly?

Finding a balance
Planting tree farms
Natural farming-less yield, but safer on water supplies and fish
Limit fishermen’s catches and only catch fish that there are plentiful

Will this work? What are the problems?

Second and Third Level Activities
Second-level- industries (factories)
Third-level- making products available to consumers

Created our landscape of housing developments, offices, railroads, and highways

Providing Jobs, Reshaping the EnvironmentIndustrial and service industries provides the majority of jobs in developed nations
Civil Engineering- technology for building structures that alter the landscape, such as dams, canals, roads, and bridges
Environmental downfall- loss of green areas, water run-off from pavement
Telephone and power lines fall under third level activities

Environmental ChallengesPollution- waste that makes air, soil or water less clean
Industry output, trash from people, and automobile exhaust all contribute to pollution
Some scientists believe that this pollution is the cause of global temperature change and climate change