Examlex
What are the characteristics of most of the extrasolar planets discovered so far?
Americans
Citizens or nationals of the United States of America, a country comprising 50 states and various territories.
1920s
The decade spanning from 1920 to 1929, characterized by significant social, economic, and cultural changes following World War I.
Punishment
A stimulus or event that decreases the likelihood of the behavior that it follows occurring again in the future.
Negative Reinforcers
Stimuli whose removal following a behavior increases the likelihood of that behavior being repeated in the future.
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