The first major US initiative to clean up the nation's air was
A) the 1870 Clean Air Act.
B) the 1920 Clean Air Act.
C) the 1970 Clean Air Act.
D) the Magna Carta.
Answer: C
You might also like to view...
The Ediacaran fauna of Australia includes many examples of organisms with hard shells and internal body parts
a. True b. False
Improvements in transportation promote spatial interaction
Indicate whether the statement is true or false
What is the path of waves in a storm?
a. ?Waves move inward toward the storm center. b. ?Waves move outward from the storm center. c. ?Waves move in a circular path around the storm center. d. ?Waves take random paths as a storm moves through. e. ?Waves move forward and back under the storm center.
Which of the following is the best approach to minimize the spread of pine feeding beetles in a pine-dominated forest?
A) using pesticides to kill the beetles B) planting additional pines once some trees die C) introducing maples, oaks, and other hardwood tree species D) releasing sterile wasps into the forest