Chapter 24: Problem 11
Decreased death rate followed by decreased birthrate has occurred in a. MDCs. b. LDCs. c. MDCs and LDCs. d. neither MDCs nor LDCs.
Chapter 24: Problem 11
Decreased death rate followed by decreased birthrate has occurred in a. MDCs. b. LDCs. c. MDCs and LDCs. d. neither MDCs nor LDCs.
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Get started for freeThe Earth's ozone shield has been damaged by a. heavy metals. b. strip mining. c. chlorofluorocarbons. d. fossil fuels.
A transition to hydrogen fuel technology will a. be long in coming and not likely to be of major significance. b. lessen many current environmental problems. c. not be likely because it will always be expensive and as polluting as natural gas. d. be of major consequence, but resource limitations for obtaining hydrogen will hinder its progress.
Match the description to the type of fuel in the key. Each answer can be used more than once. Each question may have more than one answer. a. nuclear power b. fossil fuels c. hydropower d. solar power e. wind power f. geothermal power. Renewable source of power
The preservation of ecosystems indirectly provides freshwater because a. trees produce water as a result of photosynthesis. b. animals excrete water-based products. c. forests soak up water and release it slowly. d. ecosystems promote the growth of bacteria that release water into the environment.
Soil in the tropics is often nutrient-poor because a. nutrients are tied up in plants. b. it is mostly sand. c. it has a high pH. d. rainfall leaches out minerals.
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