В якому році помер Богдан Хмельницький

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.

protected civil liberties and outlawed slavery in the new territories.

i believe the answer is a

b because they both had so of the same chosen rules