1. Oil production in the United States reduced in the early 1970s mainly because:

a) oil companies were shutting down wells to increase prices.
b) oil companies wanted to import oil rather than produce their own.
c) new oil was not being found in the U.S. as fast as it was being consumed.
d) oil companies wanted to force conservation.
e) new oil was being discovered in Alaska.

2. The main environmental impact common to ALL fossil fuels is that they:

a) produce carbon dioxide.
b) are not found everywhere.
c) produce heat when burned.
d) generally have to be processed.
e) have to be transported.

3. Cities are the principal kind of development in the:

a) urban environment.
b) suburban environment.
c) rural environment.
d) exurban.
e) urban sprawl.

4. Residential areas and shopping malls surrounding cities are the principal type of development in the:

a) urban environment.
b) suburban environment.
c) rural environment.
d) city core.
e) urban growth boundary.

5. The goal of the Sustainable Cities Program is to:

a) provide a framework to move cities in developing countries toward the objective of sustainability.
b) limit urban growth.
c) require strict adherence to a pattern of development that is the same for all cities.
d) make cities independent in all their needs.
e) rebuild American cities.