1) Why would the blockade (prevent access to) of southern ports have been an important Union goal?

a

"the land of the dead"

a countries leader should be motivated by the common good of the country.

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.

the answer is a) high entry costs