Choose the correct place from the list below.
the appalachians greenland
cuba
the west indies
mexico
panama
mountain states
southern states central states
north america
the north pole
the northwest passage
some of in the 1960s to leave the united states and start their own country.

Some of the Cuba tried in the 1960s to leave the united states and start their own country

Some of the Southern States tried in the 1960s to leave the United States and start their own country.

The Southern States is the answer

assuming that you are talking about the one in egypt: hecka oil

explanation:

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.