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Author Question: Certain pollutants that enter the atmosphere directly, such as from smokestacks and tail pipes, are ... (Read 60 times)

lak

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on: Jul 13, 2018
Certain pollutants that enter the atmosphere directly, such as from smokestacks and tail pipes, are called ____.
   a. criteria pollutants
   b. noxious pollutants
   c. primary air pollutants
   d. secondary air pollutants
   e. reactive pollutants

Question 2

The original Clean Air Act in the United States was enacted in ____.
   a. 1946
   b. 1955
   c. 1970
   d. 1977
   e. 1990


Mochi

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Reply #1 on: Jul 13, 2018
Answer to Question 1

ANSWER: c

Answer to Question 2

ANSWER: c


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