How are the appalachian mountains and the rocky mountains similar.

Answertrue;

100% tortilla. it is the only possible answer

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.

We can not answer this question because we cannot see the graph,sorry< 3