The following questions refer to the sketch of the H-R diagram below.Please choose the best answer in each case,i.e. ,choice (a)refers to the entire main sequence,while (c)and (d)refer to only small parts of the main sequence.If choice (c)or (d)offers a better answer to a particular question than (a),use the best choice.You may use the same choice more than once.

-Which group includes the Sun?
Correct Answer:
Verified
Q91: Which cluster is the oldest?
A) 
Q92: The following questions refer to the sketch
Q93: What is the approximate chemical composition (by
Q94: The following questions refer to the sketch
Q95: The following questions refer to the sketch
Q97: The following questions refer to the sketch
Q98: Process of Science: How do scientists estimate
Q99: The following questions refer to the sketch
Q100: Which cluster is 10 billion years old?
A)
Q101: What is a white dwarf?
A)It is a
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