What do most scientists believe existed before the Big Bang?
A) nothing
B) the primeval fireball
C) a singularity
D) a black hole
E) everything was inside Earth
Correct Answer:
Verified
Q25: The presently accepted value of the Hubble
Q26: If the Hubble Constant is 70 km/sec/Mpc,
Q27: While a variety of factors can produce
Q28: What is the Big Bang?
A)an enormous explosion
Q29: Currently we think that matter accounts for
Q31: Astronomers know the universe is expanding because:
A)everything
Q32: The two different kinds of surveys that
Q33: The concept that the direction of observation
Q34: What was there just after the Big
Q35: The center of the universe:
A)is a supermassive
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