Author Question: Certain pollutants that enter the atmosphere directly, such as from smokestacks and tail pipes, are ... (Read 108 times)

lak

  • Hero Member
  • *****
  • Posts: 546
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

  • Sr. Member
  • ****
  • Posts: 300
Answer to Question 1

ANSWER: c

Answer to Question 2

ANSWER: c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

For a complete list of videos, visit our video library