Which of the Following Is an Example of a Persistent

question 53

Multiple Choice

Which of the following is an example of a persistent pollutant?

• A)Carbon monoxide that breaks down after reacting with oxygen.
• B)DDT which is found in soil years after its use but is eventually destroyed by soil bacteria.
• C)Organophosphate insecticides that kill insects for several days but do not bioaccumulate in food chains.
• D)Bacteria in treated sewage sludge that is spread on fields.
• E)None of these is an example of a persistent pollutant.

Recognize the historical context of labor stability and employment rights in the early 20th century.

Comprehend the mainstream economic perspective on efficiency, equity, and voice in the employment relationship.

Analyze the impact of competition on labor according to mainstream economics.

Identify the primary causes of the labor problem according to different schools of thought.