Unit 3: The Big Bang
If anyone wants to “check” they’re answers to this connections academy test
C: 12-24 billion years ago
A: a few millimeters
B: hotter and more dense
B:
matter is fairly evenly spread throughout the universe, black holes have caused it to lump together in irregular patterns since the Big Bang.
C: gravity
B: overall density of ordinary matter must be roughly 4% of the critical density.
D: fluctuations in the density of matter in the early universe.
A:the inflation theory
A: General relativity and the cosmological principle.