« previous next »

Author Question: Certain pollutants that enter the atmosphere directly, such as from smokestacks and tail pipes, are ... (Read 107 times)

lak

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

  • Sr. Member
  • ****
  • Posts: 300
Reply #1 on: Jul 13, 2018
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
« previous next »
 

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Mechanisms of water movement from soil through plants to the atmosphere. Mechanisms of water movement from soil through plants to the atmosphere.
A humpback whale tail displaying wavy rear edges A humpback whale tail displaying wavy rear edges
A tail from a different individual - the tail of each humpback whale is visibly unique. A tail from a different individual - the tail of each humpback whale is visibly unique.
Pupil Assessment, Move Penlight directly in Front of Pupil Pupil Assessment, Move Penlight directly in Front of Pupil
Solar EM Radiation Penetration into Earth's Atmosphere Solar EM Radiation Penetration into Earth's Atmosphere
Rattlesnake Tail Rattlesnake Tail
Video: Non-specific disease resistance mechanisms & Skin's defense barriers

For a complete list of videos, visit our video library