What was the purpose of nafta?
a. to establish economic ties between the united states, canada, and mexico
b. to secure an end to increased pollution in north america
c. to fight increasing concerns of terrorist activity in the united states, canada, and mexico
d. to prevent another great depression

Short answer A <<<<<

It was intended to foster mutual trade relations between the three countries.

Only Trump and his ilk found that not to be true for them. There is a return to isolationism afoot. Not a good practice.

D. latin america followed by africa

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.