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Q7.
Sunsets appear red for the same reason that some
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stars
in space appear red -- they are both seen through
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dust
particles. Why does this make them appear red?
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b. The dust scatters blue light more than red light,
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such that more of the red light passes directly though
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the dust.
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Q8.
What do we see in the Orion nebula that indicates
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it is
a region of new star formation?
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a.
Hot O stars b. Herbig-Haro Objects c. Dust
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Disks
around stars d.
All of the Above
e. None of
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the
Above
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Q9.
The Pleadies is an open star cluster not too far
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from
us. It also represents a textbook example of a
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type
of nebula. Which type is it? C. A reflection
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nebula
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