Download Environmental Science Lab Questions and Answers: Waste Management and Composting and more Exams Nursing in PDF only on Docsity!
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- Which of these countries produces the most waste per United States person? Canada China Russia Australia United States Mexico
- How has per capita mass solid waste (MSW) changed from 1960 to 2014? It has decreased a lot. It has increased a lot. It has remained about the same since 1990.
- How has per capita mass solid waste (MSW) changed from 1990 to 2014? It has remained about the same since
- It has decreased a lot. It has increased a lot.
- How does the amount of waste that we (all people in the U.S.) create compare with the amounts we gener- ated we in 1960? A little bit less About the same a m o u n t A l o t l e s s t
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han we used to A little bit more A lot more It has increased a lot. It has remained about the same since 1990. A lot more
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We are producing more waste now and recycling less than we did in the 1960s. All is lost... Hmmm, it's kind of a good news/bad news story. We produce more waste but we also recycle more waste. We are producing less waste and recycling more, so ry. We produce more waste but we also recycle more waste.
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the current generation is a better steward of the envi- ronment than that of the 1960s.
- What items are we good about recycling? In other words, what items get recycled at least 75% of the time? plastic water bottles (PET) corrugated (cardboard) boxes tires
- Which items are recycled less than 50% of the time? aluminum beer and soda cans plastic bottles (PET) corrugated (cardboard) boxes corrugated (cardboard) boxes plastic bottles (PET)
- Single-use plastic water bottles are an item that people About 31% of the time use a lot and feel that it's not a big impact because the bottles are recyclable. But at what rate do people recycle disposable platic water bottles (PET)? About 31% of the time About 52% of the time About 10% of the time About 74% of the time
- What is Recyclable? bottle
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- All items that get sorted in the materials recovery facil- False ity end up getting recycled. True False
- The recycling sorting process involve human workers. True False
- Plastic bags should not be put into curbside comin- gled recycling bins because they clog the sorting ma- chines. True Fals e True True
- Plastic bags are an issue at recycling facilities because The workers have to climb they can clog the machines that sort the material. How into the machines and cut are these bags removed from the sorting machines? The workers have to climb into the machines and cut out the bags. The bags are shredded at the beginning of the process to keep them from clogging the machines. They are melted to remove them. There is a bag sorting machine at the beginning of the process. out the bags.
- When customers are able to put all recycling into 1 bin recovery
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(recycling) rates (single-stream) as compared to separating out their materials (dual-stream), how does this impact recovery rates according to this chart? recovery (recycling) rates increase recovery (recycling rates decrease increase
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Which of the following are benefits of composting ac- cording to the EPA site? You can use less fertilizers on your plants, and use Water Greens You can use less fertiliz- ers on your plants, and use compost instead. Additional organic mater- ial enriches the soil and helps it to suppress plant
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compost instead. Compost can attract pests to your yard diseases and pests. Supplemental organics help retain soil moisture. Additional organic material enriches the soil and helps it to suppress plant diseases and pests. Supplemental organics help retain soil moisture. Putting food in your compost pile instead of your garbage will reduce landfill methane emissions which reduces your carbon footprint.
- Drag and drop the compostable items into the bins. Scroll down to check your work.
- One last time, visit the same EPA website about home composting (https://www.epa.gov/recycle/com- posting- home) to answer the question: Why should you NOT compost dairy products or lards/fats/oils? They may kill beneficial compostin g organisms. They have a bad odor and attract pests. They have too many nutrients.
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compose the wastes in the These additives^ can^ kill^ the^ organisms^ that^ decompose^ compost. the wastes in the compost. They have too many nutrients. They attract pests.
- Why should you NOT compost diseased or insect-rid- den plants? They have too many nutrients. They may transfer this disease or pest to other plants when compost is added to soil around them. They attract pests. They may transfer this disease or pest to oth- er plants when compost is added to soil around them.
- When cities implemented pay as you throw policies, by 44% how much did they reduce the amount of waste that people threw away? 32% 78% 44% 12%
- What organisms produce landfill biogas? Nematodes Aerobic bacteria (oxygen utilizing) Anaerobic (non-oxygen utilizing) bacteria Earthworms
- The organisms that produce landfill biogas require an environment that lacks what gas? M e t h a n e
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Oxygen Anaerobic (non-oxygen utilizing) bacteria Oxygen
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It's a strong greenhouse gas. It's explosive/highly flam- mable. 50-65% third
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second third
- What are some uses for landfill biogas? manufacturing animal feed electricity generation vehicle fuel manufacturing electricity generation vehicle fuel
