The United States feared that if communism was successful on Vietnam, the rest of the countries that border it would soon turn into communism and those other countries that border that new communist country would also be converted to communism and so on. This is called the "domino theory" and made the United States to send troops to prevent the theory from happening.
<span>It enters the plant from the ocean, salt is removed from it, and it exits the plant in the form of freshwater.
Water when enters in a desalination plant </span>enters from the ocean, salt is removed from it, and it exits the plant in the form of freshwater. It is for this reason that a desalination plan must be built near the sea and they are used in many countries that don't have access to freshwater. However, they are very expensive and the technology could be improved.
D) It describes the event as it was experienced at the time.
