The most conspicuous features on the surface of the Sun are dark areas called ________.
A) granules
B) helium lines
C) flares
D) spicules
E) sunspots
Correct Answer:
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Q27: Why would astronomers place an X-ray observatory
Q28: Classic Newtonian reflector telescopes use a mirror
Q29: Which of the following is not a
Q30: To improve the resolution of radio telescopes,astronomers
Q31: The Sun produces energy by converting _.
A)oxygen
Q33: Nearly all large optical telescopes built today
Q34: Why would astronomers be interested in placing
Q35: The most explosive events to occur on
Q36: The Spitzer space telescope is _.
A)a planned
Q37: How do modern telescopes prevent problems of
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