?How are sanitary landfills designed to prevent pollution and other undesirable impacts?
Fill in the blank(s) with the appropriate word(s).
In a sanitary landfill, solid wastes are spread out in thin layers, compacted, and regularly covered with a layer of clay or plastic foam. This process helps to keep the material dry, cuts down on odors, and reduces the risk of fire, and keeps rats and other pest animals away from the wastes. In addition, it helps contain contaminated water called leachate, so that it does not leak out of the landfill and pollute nearby soil and groundwater. The bottoms and sides of well-designed sanitary landfills have strong double liners and containment systems that collect the liquids leaching from them. Some landfills also have systems for collecting methane, the potent greenhouse gas that is produced when the buried wastes decompose in the absence of oxygen, and burning it as a fuel.
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The Galápagos Islands, a unique ecosystem attracting large numbers of tourists, are part of
A. Peru. B. Ecuador. C. Chile. D. Panama.
Which one in the following scales can measure the effect or consequence of an earthquake's ground shaking at a locality on the Earth's surface?
a. The Modified Mercalli Intensity Scale b. The Richter Magnitude Scale c. The Damage Scale d. None of the above
As climate change continues, we expect that the countries with the
A) largest coastlines will experience the greatest impacts. B) greatest resources will experience the greatest impacts. C) fewest resources will experience the greatest impacts. D) fewest resources will experience the lowest impacts.
In order for devolution to take place, separatist autonomist movements must first have ________.
A. substantial funding and military force B. military force and nationality C. territory and substantial funding D. territory and an unsatisfied sense of nationalism