Govemments are important because they enforce rules that control conduct within a population
they control every aspect of the population
they eliminate the need for participation in national decisions

its the first one

Explanation:

enforce rules that control conduct within a population

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.