Multiple Choice
How does the geometry of a gravity-dominated universe relate to its density?
A) If the universe is closed, the density is equal to the critical density.
B) If the universe is flat, the density is equal to the critical density
C) If the universe is open, the density is equal to the critical density.
D) if the universe is open, the density is greater than the critical density.
Correct Answer:

Verified
Correct Answer:
Verified
Q6: The cosmological principle states that any observer
Q7: What do current observations indicate about the
Q8: Where did the cosmic microwave background (CMB)come
Q9: The _ is that the universe is
Q11: Which of the following applies if the
Q12: Why is the cosmic microwave background (CMB)so
Q13: Under what conditions will space-time be flat?<br>A)if
Q14: Why would a value of 100 km/sec/Mpc
Q15: What property of an antiproton is opposite
Q59: Why is the primordial background radiation visible