Answer:
American believed in the "domino theory," that, if a country falls to Communism, then its neighbors are also likely to do so, mainly in the region of Southeast Asia. The United States involved in Vietnam by sent troops to help South Vietnam without engaging a war in the 1950s.
<span>Jordan is frightened by the sound of a train whistle. the sound is a "Stimulus".
A stimulus is an effect from outside which affects an action or an activity, sometimes triggering some psychological response. For example in the given example the sound of the train is an external effect (Stimulus) which triggers the feeling of fright in Jordan. </span>
Answer:
The Rocky Mountains is considered a cordillera because of the other mountain ranges that run along side it.
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Explanation: