A. He was moody and short tempered and once had his nose broken in a fight with a fellow student.
Answer:
the Hadean (4600–4000 Ma), Archean (4000-2500 Ma) and Proterozoic (2500-541 Ma).
Explanation:
Black holes themselves can not be seen, nor do they leave trails (since emptiness does not have to be caused by a black hole), but there is evidence for black holes: scientists can see the effects of their gravity on nearby stars. The answer is B.
Forced the fedral goerment into heavy debet
