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 represents stars that are extremely bright and emit most of their radiation as ultraviolet light?
Correct Answer:
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Q94: The following questions refer to the sketch
Q95: The following questions refer to the sketch
Q96: The following questions refer to the sketch
Q97: The following questions refer to the sketch
Q98: Process of Science: How do scientists estimate
Q100: Which cluster is 10 billion years old?
A)
Q101: What is a white dwarf?
A)It is a
Q102: Our Sun is a star of spectral
Q103: On an H-R diagram,stellar radii
A)are greatest in
Q104: Ten parsecs is about
A)150 million kilometers.
B)10,000 seconds.
C)10
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