What impact did transportation and communication have on america?

The impact of transportation and communication was a big step for America.

This has allowed to country to have an economy with large companies that take advantage of regional specialization.

For example the transportation system makes it possible for goods to be brought for any point in the country to any other point.

By the other hand the communications have allowed for larger companies to develop because the products because they can easily in touch with the suppliers and customers around the country.

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.