Answer:
Birmingham Public Safety Commissioner Bull Connor didn't have police protect the freedom riders because it was mothers day.
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The Aztecs used aqueducts to carry fresh water
Antitrust laws generally promote (or encourage, make possible, increase support, etc) competition - they work against establishing monopolies
Patents limit (decrease, make impossible, etc,) competition - they establish a monopoly on a certain good or service.
Answer:
Crowd psychology is the broad study of how individual behavior is impacted when large crowds group together. This field of social science has progressed from the early examination of negative social groupings to the study of crowds in more socially proactive or emergency-type of environments.
Sample are the characteristics of the individuals of the population being studied
