(Note: In the passage below, there are words or phrases that are missing and hav
ID: 291217 • Letter: #
Question
(Note: In the passage below, there are words or phrases that are missing and have been replaced with letters. Match the letter to the correct missing words and phrases from the list below.)
The EPA was created in 1970. The Clean Air Acts and the enforcement work of the EPA have helped make the air in U.S. cities much cleaner and healthier. The federal EPA works with various state agencies to maintain healthy air quality. In Connecticut, the agency responsible for maintaining healthy air quality is the [A].
However, major air quality problems remain. SPM or suspended particulate matter is a serious health threat. This particulate matter, also called particulates, particles, or [B], enter human lungs and cause serious respiratory problems.
We previously looked at how coal burning power plants cause acid rain because the smokestacks of these plants emit sulfur gases that form acid in the atmosphere. This acid rains down on vegetation and into lakes and streams. Automobiles also contribute to this problem, because they emit a pollutant that is different than the sulfur from power plants. That pollutant, [C] combines with oxygen and hydrogen in the atmosphere to form [D], which also contributes to the acid rain problem.
What is the missing word or phrase labeled A in the passage above? __________
What is the missing word or phrase labeled B in the passage above? __________
What is the missing word or phrase labeled C in the passage above? _________
What is the missing word or phrase labeled D in the passage above? _________
Word Bank
DEEP
NAAQS
nitric acid
nitrogen oxide and nitrogen dioxide
carbon dioxide
sulfuric acid
aerosols
nitrogen
What is the missing word or phrase labeled A in the passage above? __________
What is the missing word or phrase labeled B in the passage above? __________
What is the missing word or phrase labeled C in the passage above? _________
What is the missing word or phrase labeled D in the passage above? _________
Explanation / Answer
A-NAAQS
National ambient air quality standards
B-aerosols
Aerosols are fine solid or liquid particles that cause respiratory problems
C-nitrogen oxide and nitrogen di oxide
D-nitric acid
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