any change in the design, manufacture, purchase, or use of materials or products to reduce their amount or toxicity before they become municipal solid waste; also the reuse of products or materials

• source reduction

• waste management

• recycling

• pollution control

In a river ecosystem, dissolved oxygen concentrations drop quickly downstream from a point-source input of organic matter into the river due to

• increasing bacterial activity as organic matter decays

• decreased water temperature

• increased photosynthesis by aquatic plants

• reduction in water flow

What helps protect against leachate getting into groundwater in sanitary landfills?

• pipes to extract methane gas

• plastic or clay liner

• a layer of gravel between the MSW and soil

• the soil cap that covers the landfill after it reaches capacity

What is it called when a persistent pollutant (like mercury or PCBs) builds up in the tissues of an organism as they continue to eat something that contains the pollutant?

• Bioaccumulation

• Biomagnification

• Eutrophication

• Decomposition

Which current approach could help greatly reduce the volume and mass of current MSW in the United States?

• incineration

• recycling

• composting

• municipal sewage treatment

Which federal law deals w/cleanup of abandoned hazardous waste sites?

• RCRA

• CERCLA (Superfund)

• NIMBY

• Safe Drinking Water Act

Which of the following is not a way to deal with waste? Landfill, Incineration, Deep Well Injection, Dumping

• Landfill

• Incineration

• Deep Well Injection

• Dumping

Which list is made up of toxic metal pollutants? PCB, BPA, mercury, & potassium, cadmium, chromium, lead, & mercury, sodium, cadmium, lead, potassium, & BPA, argon, neon, chromium, & mercury

• PCB, BPA, mercury, & potassium

• cadmium, chromium, lead, & mercury

• sodium, cadmium, lead, potassium, & BPA

• argon, neon, chromium, & mercury

What is the main environmental concern with sanitary landfills?

• leachate contamination of groundwater

• air pollution from methane emissions

• visual pollution from unsightly waste

• increased traffic congestion due to waste collection

What is the danger in eating some fish from lakes or ocean?

• They may contain high levels of mercury or POP's like PCB's.

• They are often contaminated with bacteria.

• They can cause allergic reactions in some individuals.

• They may have a high fat content that is unhealthy.