Which general did the continental congress designate the new commander of the south due to being a hero at saratoga?

Horatio Gates.

Explanation:

Horatio Gates earned the position of the new commander due to his success at the Battle of Saratoga. However, this position changed hands three times during the course of the war.

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.

i believe that the correct answer is a canadian hero.

explanation: he is celebrated as a national hero in canada for successfully thwarting a united states takeover of canada during the war of 1812.