What was the major objective of domestic U.S. air-quality legislation like the 1955 Air Pollution Control Act?
a. Pollution in U.S. cities.
b. Reducing greenhouse gases.
c. Closing the hole in the ozone layer.
d. Regulating the emission of methane.
a. Pollution in U.S. cities.
Political Science
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When we cannot measure important hypothetical constructs directly, we rely on
a. operational definitions. b. manipulations. c. independent variables. d. qualitative variables.
Political Science
Given no other information, chance is always the most likely explanation for differences between two groups
a) True b) False
Political Science