APES ch 16 quiz
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| Landfill potential threats to the environment | Always the possibility that leachate from a landfill will contaminate the underlying adjacent waterways. Anaerobic decomposition also produces carbon dioxide and methane (greenhouse gasses)
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| Aerobic vs. anaerobic decomposition | Aerobic decomposition allows oxygen to enter waste - leads to the creation of compost. Anaerobic decomposition restricts organic waste from receiving oxygen which leads to anaerobic breakdown of the waste which leads to the release of methane.
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| Incineration | process of burning waste materials
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| Incineration pro | Pros: Reduces volume and mass of waste materials and sometimes generates electricity or heat.
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| Incineration con | Cons: Tipping fees are higher at incinerators than landfills, releases air pollutants, produces ash that is deemed toxic and must be disposed of in a special landfill.
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| Illegal dumping and associated problems (ex: connection between tires and disease) | Tires that may end up in the wrong place, sit there and collect water as it rains. This sedentary water in the tire becomes a breeding ground for mosquitoes - carrying malaria.
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| Dangers of E waste | E-waste contains toxic metals such as mercury and cadmium which can leach out of landfills; harmful to humans and ecosystems
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| recycling pro | Pro: reduces landfill volume
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| recycling con | Con: costly and still requires additional energy
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| composting pro | Pro: aerobic decomposition creates organic fertilizer
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| composting con | Con: anaerobic decomposition of organic materials leads to production of methane; smelly
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| RCRA "cradel to grave" | List of hazardous materials; must properly dispose of hazardous materials
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| CERCLA "superfund act" | Tax on chemical+petroleum industries; $ used to clean up contaminated sites
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