Health: The Basics, The Mastering Health Edition (12th Edition)
12th Edition
ISBN: 9780134183268
Author: Rebecca J. Donatelle
Publisher: PEARSON
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Chapter 15, Problem 5PQ
The barrier that protects us from the sun’s harmful ultraviolet rays is
- a. photochemical smog
- b. the ozone layer.
- c. gray air smog.
- d. the greenhouse effect
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Chapter 15 Solutions
Health: The Basics, The Mastering Health Edition (12th Edition)
Ch. 15 - How would such policies compare to our current...Ch. 15 - Can you think of other policies that might be...Ch. 15 - Prob. 3WDYTCh. 15 - Prob. 4WDYTCh. 15 - Prob. 1PQCh. 15 - Prob. 2PQCh. 15 - The air pollutant emitted primarily from motor...Ch. 15 - Prob. 4PQCh. 15 - The barrier that protects us from the suns harmful...Ch. 15 - When gases such as carbon dioxide and hydrocarbons...
Ch. 15 - Prob. 7PQCh. 15 - Prob. 8PQCh. 15 - Prob. 9PQCh. 15 - Prob. 10PQCh. 15 - LO 1 | Overpopulation: The Planets Greatest Threat...Ch. 15 - Prob. 2TAICh. 15 - LO 3 | Climate Change 3. What are the causes and...Ch. 15 - Prob. 4TAICh. 15 - LO 5 | Land Pollution 5. How do you think...Ch. 15 - Prob. 6TAICh. 15 - Prob. 7TAICh. 15 - Prob. 1AYCh. 15 - Prob. 2AYCh. 15 - Prob. 3AYCh. 15 - Prob. 4AYCh. 15 - Prob. 5AYCh. 15 - Prob. 6AYCh. 15 - Prob. 7AYCh. 15 - Prob. 8AYCh. 15 - Prob. 9AYCh. 15 - Prob. 10AYCh. 15 - Prob. 11AYCh. 15 - Prob. 12AYCh. 15 - Prob. 13AYCh. 15 - Prob. 14AYCh. 15 - Prob. 15AYCh. 15 - Prob. 16AYCh. 15 - Prob. 17AYCh. 15 - Prob. 18AYCh. 15 - Prob. 19AYCh. 15 - Prob. 20AYCh. 15 - Prob. 21AYCh. 15 - Prob. 22AYCh. 15 - Prob. 23AY
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- Describe at least two ways that human activities are altering air quality.arrow_forwardDeforestation ______. a. increases mineral runoff from soil b. decreases local temperature c. increases local rainfall d. all of the abovearrow_forwardFigure 20.12 Which of the following statements about the nitrogen cycle is false? a. Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+) . b. Denitrification by bacteria converts nitrates (NO3) to nitrogen gas (N2) . c. Nitrification by bacteria converts nitrates (NO3) to nitrites (NO2) . d. Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.arrow_forward
- Which biogeochemical cycle does not have a gaseous component but cycles from the land to sediments in the ocean and back to the land? (a) carbon cycle (b) nitrogen cycle (c) phosphorus cycle (d) hydrologic cycle (e) neither a nor c has a gaseous componentarrow_forwardThe process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called _________. a. dead zoning b. eutrophication c. retrophication d. depletionarrow_forwardThe producer in an ocean grazing food web is usually a _____. a. plant b. animal c. fungi d. planktonarrow_forward
- The map below shows the availability of direct solar energy in North America. Some areas are good candidates for solar heating systems and use of solar cells to produce electricity (see legend). What is the potential for using more solar energy where you live?arrow_forwardThe deepest, richest soil in the world occurs in (a) temperate rain forest (b) tropical rain forest (c) savanna (d) temperate grassland (e) chaparralarrow_forwardFigure 46.17 Which of the following statements about the nitrogen cycle is false? Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+). Denitrification by bacteria converts nitrates (NO3-) to nitrogen gas (N2). Nitrification by bacteria converts nitrates (NO3 ) to nitrites (NO2-). Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.arrow_forward
- The majority of the water found on Earth is: a. ice b. water vapor c. fresh water d. salt waterarrow_forwardForests of the northeastern and middle Atlantic United States, which have broad-leaf hardwood trees that lose their foliage annually, are called (a) temperate deciduous forests (b) tropical dry forests (c) boreal forests (d) temperate rain forests (e) tropical rain forestsarrow_forwardChanges in the Air To assess the impact of human activity on the carbon dioxide level in Earth's atmosphere, it helps to take a long view. One useful data set comes from deep core samples of Antarctic ice. The oldest ice core that has been fully analyzed dates back a bit more than 400,000 years. Air bubbles trapped in the ice provide information about the gas content in Earth's atmosphere at the time the ice formed. Combining ice core data with more recent direct measurements of atmospheric carbon dioxideas in FIGURE 46.20can help scientists put current changes in the atmospheric carbon dioxide into historical perspective. FIGURE 46.20 Changes in atmospheric carbon dioxide levels (in parts per million). Direct measurements began in 1980. Earlier data are based on ice cores. The industrial revolution occurred around 1800. What was the trend in carbon dioxide level in the 800 years prior to this event? What about in the 175 years after it?arrow_forward
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