Term
| The four major public land management agencies in the United States operate under the principle of multiple use. Which of the following uses is common to all four agencies’ lands? |
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Definition
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Term
| For many years, forest fires were suppressed to protect lives and property. This policy has led to what? |
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Definition
| A buildup of dead biomass that can fuel larger fires. |
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Term
| When we purchase an item, we are charged for the labor and supply costs of producing that item. However, we are not charged for the costs of any environmental damage that occurred in manufacturing that item. Those costs are known as what? |
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Definition
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Term
| Which of the following is not an environmental consequence of clear-cutting? |
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Definition
| Increased fish populations due tothe influx of nutrients into streams |
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Term
| Which of the following was a significant cause of urban sprawl over the past 50 years? |
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Definition
| Migration of people from rural areas to large central cities |
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Term
| Which of the following does not explain the rise of the modern farming system? |
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Definition
| Small farms are usually more profitable than large farms. |
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Term
| The use of synthetic fertilizers increases crop yields, but also? |
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Definition
| Increases nutrient run-off into bordering surface waters. |
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Term
| Which of the following statements best describes the pesticide treadmill? |
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Definition
| Some pest populations evolve resistance to pesticides, which become less effective over time, so that new pesticides must be developed. |
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Term
| Which of the following practices is not a part of integrated pest management? |
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Definition
| Elimination of pesticides |
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Term
| Concentrated animal feeding operations (CAFOs) can best be described as? |
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Definition
| Facilities where a large number of animals are housed and fed in a confined space. |
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Term
| What percentage Earth’s water is fresh water? |
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Definition
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Term
| Which of the following contrasts between confined and unconfined aquifers is correct? |
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Definition
| Only confined aquifers can produce artesian wells. |
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Term
| Which of the following statements about surface waters is incorrect? |
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Definition
| Levees are used to make reservoirs. |
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Term
| Which of the following statements about dams is notcorrect? |
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Definition
| Most dams are built to generate electricity. |
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Term
| Which of the following statements about aqueducts is correct? |
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Definition
| Aqueducts designed as open canals can lose a lot of water via evaporation. |
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Term
| Which of the following lists of agricultural irrigation techniques is in the correct order, from least efficient to most efficient? |
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Definition
Furrow irrigation
Flood irrigation
Spray irrigation
Drip irrigation |
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Term
| Which of the following statements about the industrial use of water is not correct? |
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Definition
| Its use is becoming less efficient. |
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Term
| Which of the following statements about nonpoint source (NPS)pollution is not correct? |
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Definition
| NPS is water pollution that originates from a distinct source such as a pipe or tank. |
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Term
| Human wastewater results in which of the following water-pollution problems? |
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Definition
I The organic matter decomposes and reduces dissolved oxygen levels.
II Decomposition of organic matter releases great quantities of nutrients.
III Pathogenic organisms are carried into surface waters. |
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Term
| Under which of the following circumstances is a sewage treatment plant legally permitted to bypass normal treatment protocol and discharge large amounts of sewage directly into a lake or river? |
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Definition
| When combined volumes of storm water and wastewater exceed the capacity of an older plant. |
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Term
| Which of the following inorganic substances is naturally occurring in rocks, soluble in groundwater, and toxic at low concentrations? |
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Definition
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Term
| Acid mine drainage results from acidic water formed below ground that makes its way to the surface; the acidic water is formed as a result of the flooding of abandoned mines, where the underground water? |
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Definition
| Reacts with a type of rock, pyrite, which releases iron and hydrogen ions. |
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Term
| All of the following are problems that result from the use of pesticides except? |
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Definition
| Pesticide run-off enters surface waters and increases the solubility of heavy metals. |
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