ch. 22 sec. 2 answers. 1. what is smog made of?
TRANSCRIPT
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Ch. 22 sec. 2 Answers
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1. What is smog made of?
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1. What is smog made of?
![Page 4: Ch. 22 sec. 2 Answers. 1. What is smog made of?](https://reader038.vdocuments.site/reader038/viewer/2022110213/5697bfe31a28abf838cb4d5c/html5/thumbnails/4.jpg)
2. What does ozone in the stratosphere protect us from?
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2. What does ozone in the stratosphere protect us from?
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3. What are CFCs?
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3. What are CFCs?
• Chlorofluorocarbons
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3. What are CFCs?
• Chlorofluorocarbons • Were used as coolants in frigs and ACs, as well as propellants in spray cans and in the
creation of plastic-foam products
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3. What are CFCs?
• Chlorofluorocarbons
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4. What could happen to humans with a 10 percent drop in ozone levels?
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4. What could happen to humans with a 10 percent drop in ozone levels?
• 300,000 new cases of human skin cancer
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5. What is a cause-and-effect relationship?
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5. What is a cause-and-effect relationship?
• A change in one variable causes a change in another variable
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6. What could happen to global temperatures with a doubling of atmospheric carbon dioxide?
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6. What could happen to global temperatures with a doubling of atmospheric carbon dioxide?
• Increase in average global temperatures of 1-4.5 degrees Celsius (2-8 degrees Fahrenheit)
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7. Increased acidity of soil and water due to acid precipitation causes what problems in the
environment?
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7. Increased acidity of soil and water due to acid precipitation causes what problems in the
environment?• Disease or death in trees, fish, and other
organisms
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8. What is biological magnification?
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8. What is biological magnification?
• Process in which chemicals become more concentrated in an organism the higher on a food chain that organism is.
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9. What is ecosystem disruption?
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9. What is ecosystem disruption?
• The destruction or substantial change in the functioning of natural ecosystems
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10. Define extinction.
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10. Define extinction.
• Death of every member of the species
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11. What is the biodiversity crisis?
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11. What is the biodiversity crisis?
• Scientists estimate that 20 percent of Earth’s plant and animal species may become extinct in the next 50 years
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12. What is a keystone species?
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12. What is a keystone species?
• Species that affect many other species in a community
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13. What is the Earth’s primary production and how much of it do human’s use?
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13. What is the Earth’s primary production and how much of it do human’s use?
• The total energy stored (biomass) through photosynthesis by terrestrial organisms
• Humans use an estimated 10 to 55%
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14. What does an ecological footprint account for?
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14. What does an ecological footprint account for?
• Accounts for people’s use of food and natural resources, as well as people’s production of wastes and pollution
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14. What does an ecological footprint account for?
• Accounts for people’s use of food and natural resources, as well as people’s production of wastes and pollution
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15. What is sustainability?
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15. What is sustainability?
• The ability to meet human needs in such a way that a human population can survive indefinitely.