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Author Question: In Drake's equation, which of the following is the closest estimate for the number of stars that are ... (Read 72 times)

CQXA

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on: Jul 27, 2018
In Drake's equation, which of the following is the closest estimate for the number of stars that are formed in the Milky Way Galaxy?
 
  A) a star a day
  B) a star a month
  C) a star a year
  D) a star a decade
  E) a star a century

Question 2

Name four ways that the interstellar medium reveals its presence.
 
  What will be an ideal response?


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dpost18

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

Hot gas glows as emission nebulae. Cool dust absorbs and scatters blue light more, making the distant stars appear redder in color than their spectra indicate they should. And if the cool dust and gas is dense enough, it can block starlight entirely and be revealed by its dark profiles against the starry background. Also, the dust grains can form molecules that are picked up with microwave or radio scopes.


CQXA

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Reply #2 on: Jul 27, 2018
TY


dpost18

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Reply #3 on: Jul 27, 2018
You're welcome


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