The answer for this question is C. The Domino Theory. This theory states that if a country came under communist rule, its neighboring countries and regions would follow as well. This theory is what the US used as a reason to intervene in the different affairs of various countries to stop or prevent communism from spreading.
Is this a book or just general questions?
Yes wind energy can be a major source of power(:
<span>The 350-mile long stretch of water is known as the 'English Channel' in English</span>
Convert to improper fraction (multiply whole number by denominator and add numerator, keep the denominator)
5 1/4 = 21/4
4 1/2 = 9/2
Multiply 9/2 by 2/2 to get the same denominator = 18/4
Subtract the numerators, keep the denominator.
21/4-18/4 = 3/4.