Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 25, Problem 4SQ
Greenhouse gases ________.
- a. slow the escape of heat from Earth into space
- b. are produced by natural and human activities
- c. are at higher levels than they were 100 years ago
- d. all of the above
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As greenhouse gas levels in the atmosphere decrease, global temperatures __________________________.
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The 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. retrofication d. depletion
Chapter 25 Solutions
Human Biology (MindTap Course List)
Ch. 25 - Describe at least two ways that human activities...Ch. 25 - Prob. 2RQCh. 25 - Describe the greenhouse effect. Make a list of...Ch. 25 - Prob. 4RQCh. 25 - Prob. 1SQCh. 25 - Prob. 2SQCh. 25 - Prob. 3SQCh. 25 - Greenhouse gases ________. a. slow the escape of...Ch. 25 - All the following are renewable energy sources...Ch. 25 - Prob. 6SQ
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- The quantity of available nutrients ____________- from the lower levels ofthe energy pyramid to the higher ones.a. increases b. decreases c. remains stable d. cyclesarrow_forwardWhich of the following natural forces is responsible for the release of carbon dioxide and other atmospheric gases? a. the Milankovitch cycles b. volcanoes c. solar intensity d. burning of fossil fuelsarrow_forwardAs a result of_______ , an old animal usually has more pollutants in its body than a young one. a. bioaccumulation b. biological magnificationarrow_forward
- Which of the following is not a fossil fuel? a. natural gas b. coal c. wood d. petroleumarrow_forwardPlants use carbon dioxide from the air and are therefore called _____. a. consumers b. producers c. decomposer d. carbon fixersarrow_forwardBurning fossil fuels results in the emission of ________________ into the atmosphere. a. CO2 b. O2 c. none of the above d. ozonearrow_forward
- The process whereby nitrogen is brought into organic molecules is called ________. a. nitrification b. denitrification c. nitrogen fixation d. nitrogen cyclingarrow_forwardWe learned an ironic twist in the film called "The Other Inconvenient Truth." It was that a. agriculture creates more pollution than other sources, but we have to increase farming for the growing population b. that nitrogen in the soil is significant pollution, but if we don't use these fertilizers we will not have enough food c. That methane is produced by animals and by growing rice. So becoming vegetarian won't clear methane from the atmosphere. d. agriculture uses 70% of fresh water mined , causing a salt water pollution tooarrow_forwardIn most ecosystems, the primary producers use energy from______ to build organic compounds. a. sunlight b. heat c. breakdown of wastes and remains d. breakdown of inorganic substances in the habitatarrow_forward
- The movement of mineral nutrients through organisms and their environment is called a ________ cycle. a. biological b. bioaccumulation c. biogeochemical d. biochemicalarrow_forwardWhich one of the following is not caused due to the PV power plants? a. Land pollution b. Battery Pollution c. Eyesight problem d. Earthquakesarrow_forwardWhy are many people especially concerned about the release of carbon dioxide through fossil fuel combustion? A. Carbon dioxide is by far the most abundant of the greenhouse gases released through human activities. B. More than any other climate driver, carbon dioxide has contributed the most to the global rise in temperature since the industrial revolution. C. Carbon dioxide turns over very slowly, so the carbon dioxide released into the atmosphere today can affect the global climate for thousands of years into the future. D. All of the above are correct E. None of the above are correctarrow_forward
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