Multiple Choice
Suppose you measured H-R diagrams for the two star clusters pictured below.Which of the following statements is true? 
A) Cluster A is younger than cluster B,but both are the same distance away.
B) Cluster A is older and farther away than cluster B.
C) Cluster A and cluster B have the same age,but cluster B is closer.
D) Cluster A is older and closer than cluster B.
E) Cluster A is younger and farther away than cluster B.
Correct Answer:

Verified
Correct Answer:
Verified
Q1: The production of large numbers of neutrons
Q11: When the first pulsar was discovered, scientists
Q16: What characteristic of a star cluster is
Q20: Cepheid variable stars are important because we
Q33: Where did all heavy elements in the
Q51: As a high-mass main-sequence star evolves off
Q52: Why are star clusters helpful for testing
Q85: Neutron stars are sometimes found in binary
Q89: Describe the physical mechanism that causes pulsations
Q90: Name three processes that speed the collapse