The Greatest Single Source of Air Pollution in the United

question 23

Multiple Choice

The greatest single source of air pollution in the United States is from:

• A) Waste incineration
• B) Power plants
• C) Motor vehicles
• D) Molds

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Definitions:

Poverty Rate

The proportion of a population living below the national poverty line, indicating the level of poverty in a country.

Billion

A numerical value representing one thousand million (1,000,000,000) in the American short scale system, commonly used in counting currency and population.

Million

A numerical value representing one thousand thousands, or 1,000,000.

Extreme Poverty

A condition characterized by severe deprivation of basic human needs, often measured by the World Bank as living on less than $1.90 a day.