Author Question: In the context of a big bang model, identify a true statement about the flatness problem. A) It ... (Read 102 times)

jhjkgdfhk · **on:** Jul 27, 2018

In the context of a big bang model, identify a true statement about the flatness problem.

A) It is the peculiar circumstance that the early Universe's average density was much more than the critical density but it was still flat.
B) It is the peculiar circumstance that the actual density of the Universe will always be equal to the critical density and will always remain flat.
C) It is the peculiar circumstance that the early Universe must have contained exactly the right amount of matter to make space-time flat.
D) It is the peculiar circumstance that the early Universe's average density was considerably less than the critical density but it was still flat.

Question 2

The look-back time for the fictional stars Chairos, Alpha Arctic, Chi Omega, and Delta Junos are 37 years, 32 years, 29 years, and 41 years respectively. From this information, we can conclude that the nearest star is _____.

A) Chairos
B) Alpha Arctic
C) Chi Omega
D) Delta Junos