1. KEY CONCEPT The impact of a growing human population threatens biodiversity.
2. Preserving biodiversity is important to the future of the biosphere. The loss of biodiversity has long-term effects. loss of medical and technological advances. How? extinction of species loss of ecosystem stability
3. Loss of habitat eliminates species. Habitat fragmentation prevents an organism from accessing its entire home range. occurs when a barrier forms within the habitat often caused by human development. Like what?
8. Sustainable development manages resources for present and future generations. Thinking sustainably involves thinking in ______ not in a ______. Sustainable development meets needs without hurting future generations. resources meet current needs resources will still be available for future use
14. Protecting Earth’s resources helps protect our future. The Environmental Protection Agency (EPA) was created in 1970. The EPA develops policies and regulations to protect the environment. Legislation helps to protect the environment and endangered species. Clean Air Act Clean Water Act Endangered Species Act
18. What causes smog? A. the burning of particulates B. the formation of ozone C. acid rain D. the interaction of sunlight with pollutants produced by burning fossil fuels Correct Answer = D How is ground-level ozone formed? A. coal particulates combine with oxygen molecules in the air B. an oxygen atom is transferred from carbon dioxide to an oxygen molecule C. an oxygen molecule is transferred from nitrogen oxide to an oxygen atom D. an oxygen atom is transferred from nitrogen dioxide to an oxygen molecule
19. What causes smog? A. the burning of particulates B. the formation of ozone C. acid rain D. the interaction of sunlight with pollutants produced by burning fossil fuels Correct Answer = D How is ground-level ozone formed? A. coal particulates combine with oxygen molecules in the air B. an oxygen atom is transferred from carbon dioxide to an oxygen molecule C. an oxygen molecule is transferred from nitrogen oxide to an oxygen atom D. an oxygen atom is transferred from nitrogen dioxide to an oxygen molecule Correct Answer = D
20. What is global warming? A. the normal temperature fluctuations of Earth's climate cycle B. the melting of the polar ice caps C. the trend of increasing temperatures on Earth D. the changes in Earth's biosphere that affect the atmosphere Why are frogs considered an indicator species for water quality? A. They are easily killed by direct contact with pollutants. B. They are able to break down pollutants. C. They come into direct contact with pollutants and show readily observed effects like deformities. D. They develop diseases when they come in direct contact with pollutants.
21. What is global warming? A. the normal temperature fluctuations of Earth's climate cycle B. the melting of the polar ice caps C. the trend of increasing temperatures on Earth D. the changes in Earth's biosphere that affect the atmosphere Correct Answer = C Why are frogs considered an indicator species for water quality? A. They are easily killed by direct contact with pollutants. B. They are able to break down pollutants. C. They come into direct contact with pollutants and show readily observed effects like deformities. D. They develop diseases when they come in direct contact with pollutants. Correct Answer = C
22. Review Preserving biodiversity helps the species and helps humans Habitat corridors help preserve habitats Avoiding invasive species introduction protects biodiversity Sustainable development manages resources Protecting individual species assists entire environments The National Park system protects habitats for diverse species.
