APES: Unit 8 Pollution Review

Which of the following is a non-point source of water pollution

• Effluent from a sewage treatment plant
• BP refiner in Indiana discharging ammonia in a river.
• Runoff of pesticides from regional farms into the Illinois River.
• Hot water discharges from a nuclear power plant.

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

• They may be invasive species.
• If abundant, they may lead to a crash in other species.
• If they are high on the food chain they may contain high levels of mercury or POP's like PCB's
• They may contain too many nutrients from fertilizers.

Which of the following is a persistent inorganic pollutant that can impair neurological functioning?

• Lead 
• DDT
• PCB's
• Atrazine

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

• Subsidence
• Biomagnification
• Tragedy of the commons
• Bioaccumulation

The biochemical oxygen demand (BOD) is defined as:

• the amount of oxygen required by humans who use a water supply
• the amount of oxygen required for biochemical decomposition processes
• the amount of oxygen needed by plants growing in a water source
• the amount of oxygen given off by a specific water source

Which of the following is not usually associated with eutrophication?

• algal blooms
• reduced photosynthesis in the water column
• increased heavy metal concentrations
• reduced dissolved oxygen  

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

• increasing populations of mayfly and stonefly larvae
• increasing bacterial activity as organic matter decays
• decreasing bacterial activity as turbidity increases
• decreasing water temperature

Acid measures this on the pH scale.

• exactly 7
• anything below 7
• anything above 7
• anything from 1 to 14

What is the main environmental concern with sanitary landfills?

• leachate contamination of groundwater
• generation of CO gas
• attracting disease-carrying organisms
• slow and incomplete degradation

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