Impacts of people on earth

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Presentation transcript:

Impacts of people on earth Ch. 7 Review Impacts of people on earth

Ways to reduce smog (air pollution) Carpool Take public transportaion Cars are the #1 cause of smog. You can reduce smog by carpooling, walking, biking, or taking public transportation.

Population Explosion The population of people on Earth is growing exponentially.

What happens if there is less vegetation? Plants use carbon dioxide and produce oxygen. What is the result of less vegetation?

Our impact on the environment Positive Negative

Unsafe: motor oil, paint, battery acid Safe for the drain? Safe: vinegar Unsafe: motor oil, paint, battery acid

Composting: piling up grass and leaves so they can decompose

Know these vocabulary words Carrying capacity Desertification Nonpoint-source pollution Particulate matter Population Reforestation Urban sprawl

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