Beginning in the First Decades of the Twentieth Century, a Number

question 2

Multiple Choice

Beginning in the first decades of the twentieth century, a number of political changes violated many of the assumptions of the work of classical urban theorists. Which of the following is NOT one of these changes?

• A) comprehensive zoning that regulated land uses in cities
• B) the growth of the role of government in providing the city's infrastructure
• C) a decrease in the role of the federal government in the operation of the housing market
• D) urban renewal and redevelopment

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Definitions:

Biological Magnification

The process by which the concentration of toxic substances increases in each successive link in the food chain.

Bioaccumulation

The buildup of a persistent toxic substance, such as certain pesticides, in an organism’s body.

DDT

Dichloro-Diphenyl-Trichloroethane, a synthetic insecticide used historically for malaria and pest control, now banned in many countries due to environmental impact.

Nitrogen Cycle

A biogeochemical cycle that describes the transformations of nitrogen and nitrogen-containing compounds in nature.