Multiple Choice
Prior to the formation of the protostar,___________ .
A) the temperature of the cloud is greater than 10,000 K
B) the interstellar clouds are composed of equal amounts of hydrogen and helium
C) nuclear fusion converts hydrogen to helium
D) nuclear fusion does not occur
Correct Answer:
Verified
Correct Answer:
Verified
Q3: On a Hertzprung- Russell Diagram, our Sun
Q4: Low mass stars generally end up as_
Q5: How do we calculate or determine the
Q6: What is the main factor that determines
Q7: Degenerate matter can have densities 1 million
Q9: Galaxies are collections of_ .<br>A) ice<br>B) interstellar
Q10: Stars spend most of their life span
Q11: What two elements formed first?<br>A) protons and
Q12: There are three possible fates for the
Q13: The red shift refers to _.<br>A) the