If it gains sufficient mass from a binary companion, a white dwarf can become a
A) brown dwarf.
B) black dwarf.
C) Type II supernova.
D) planetary nebula.
E) Type I supernova.
Question 2
How do scientists determine the age of fossils?
A) They only determine relative ages by assuming that deeper layers of sedimentary rock are older.
B) They use radiometric dating to measure the age of the surrounding rocks.
C) They cannot.