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Author Question: Which of the following statements is true of reflection nebulae? A) They have a distinctive blue ... (Read 123 times)

debasdf

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on: Jul 27, 2018
Which of the following statements is true of reflection nebulae?
 
  A) They have a distinctive blue color.
  B) The gases in reflection nebulae are excited to emit photons.
  C) The spectrum of a reflection nebula is not the reflected absorption spectrum of starlight.
  D) They are produced when a hot star excites the gas to produce an emission spectrum.

Question 2

_____ is a series of three nuclear reactions that builds a helium nucleus by adding protons one at a time.
 
  A) The proton-neutron chain
  B) The helium proton chain
  C) The proton-proton chain
  D) The hydrogen-helium chain


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ebonylittles

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

A

Answer to Question 2

C


debasdf

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Reply 2 on: Jul 27, 2018
:D TYSM

alvinum

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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