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Humans and the Environment

Humans and the Environment. What is extinction?. When a species no longer exists. Extinction. Natural process Caused by climate changes, predators, environmental factors, and human involvement. Natural Resources. Resources taken from the environment

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Humans and the Environment

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  1. Humans and the Environment

  2. What is extinction? • When a species no longer exists

  3. Extinction • Natural process • Caused by climate changes, predators, environmental factors, and human involvement

  4. Natural Resources • Resources taken from the environment • Renewable resources can be replaced by nature • Nonrenewable resources cannot be replaced

  5. Questions • What is extinction? • What are some causes of extinction? • What is the difference between renewable and nonrenewable resources?

  6. Pollution • Making the environment unclean with wastes • Gases, chemicals, heat, garbage, and noise • Materials that cause pollution are pollutants

  7. Air pollution • Caused by burning fuels and trash • Industries cause such pollution • Causes lung disease and acid rain

  8. Water pollution • Industrial wastes, sewage, and chemicals dumped into water supply

  9. Soil pollution • Some is caused by pollutants in the air or chemical used to control pests • Burying toxic wastes can cause soil pollution as well

  10. Consequences of pollution • Acid rain • Endangering or extinction of animals • Contamination of environment • Poor air quality • Disease

  11. Questions • How are the types of pollution different? • What is pollution? • What are some causes of pollution?

  12. Conservation • Wise use of materials and energy • Recycling (reusing) materials • Decreasing amounts used • Using alternative forms of energy and materials

  13. Questions • What are some ways pollution can affect the environment? • How can humans reduce pollution?

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