9. What is the difference between basalt and andesite?

Do you have a picture for this problem?

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.

It is nonrenuable which means that once you have used it, it's gone forever.

Your answer would be 625,000,000.