Answer:
Today, there are planes, automobiles, subways, etc. Technology and science has had the biggest influence on transportation. Engineers and physicists have made it possible to take 150 people and fly them across the ocean. Automobile designers continue to find greener ways to build cars that will emit less pollution.
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Answer:
Free Southern blacks continued to live under the shadow of slavery, unable to travel or assemble as freely as those in the North.
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