Which best reflects president lincoln’s hopes for reconstruction?
a. to punish the south severely for seceding from the union
b. to replace all white officials in the south with african americans
c. to strengthen the north’s domination of the south
d. to bind the nation together and create a lasting peace

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

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.