How old are the rocks off the east coast of north america relative to the rocks right along the mid atlantic ridge, why do you think this is the case?

Over 4.6 billion years and it’s because the age of the formation of the Earth and the age of the rocks are the same.

Answer b is the answet

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.