History

Modual exam

100

What type of energy has concerns due to turbine noises?

wind

ENERGY

100

What is an example of a nonrenewable energy resource?

coal

Economy

100

What type of economy has a government or state controlling all aspects of a country's economy?

communist

Languages

100

Approximately how many languages are spoken in the world today?

3,000

air quality

100

What reason for concern about population growth is related to improving air quality?

pollution