What happens to the density of air as altitude decreases? A. the density of air decreases
B. the density of air stays the same
c. the density of air changes randomly
D. the density of air increases

Select the best hypothesis explaining why countries may have preferred communism. communism promised jobs after the insecurities of war. communists forced the people to do what they said. communism was fueled by a dislike for democracy. communism provided economic freedom for businesses and workers.