The act that allowed the people to vote on the issue of slavery in their state was known as ? A Missouri Compromise B. Louisiana Purchase C. Treaty of Paris 1861 D. Kansas-Nebraska Act

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.

a system of cooperative federalism emerged, as the powers of the federal government expanded.