Dred Scott would remain a slave and, as a slave, was not a U.S. citizen and was considered property. The Chief Justice of this case, John Marshall, said that Scott shouldn't have even brought his case to court because he is a slave.
The answer is D because astrophysical theory because that relates to astronomy. The other three are something the geologists can use to help them find out about the past. Hope this helped
Answer:
I believe the answer is b
Explanation: