Answer:
Karl Schwarzschild discovered black holes in 1916.
Hope this helps!!
40% i believe. please correct me if i am wrong.
12. D
13. B
14 . C
I hope I helped you. I don't know if I was helpful.
Artifact selections benefits humans by helping us learn what had happened in the past.
Yes, it is b. Digestion is the process of breaking down food.