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Author Question: Which of the following gases, which we might be able to detect in infrared spectra, would be a ... (Read 85 times)

Lobcity

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on: Jul 27, 2018
Which of the following gases, which we might be able to detect in infrared spectra, would be a strong indicator of life on another planet?
 
  A) carbon dioxide
  B) ozone
  C) methane
  D) water vapor
  E) sulfuric acid

Question 2

Which sequence of formation by age is correct, oldest to youngest?
 
  A) Dark nebulae, planetary nebulae, emission nebulae
  B) Spiral arms, bulge, halo
  C) Halo, spiral arms, globular clusters
  D) Globular clusters, emission nebulae, open clusters


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prumorgan

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

B

Answer to Question 2

D


Lobcity

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Reply #2 on: Jul 27, 2018
TY


prumorgan

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


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