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Author Question: The sky is blue because molecules in the atmosphere scatter blue light more effectively than red ... (Read 79 times)

Mr. Wonderful

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on: Jul 27, 2018
The sky is blue because molecules in the atmosphere scatter blue light more effectively than red light.
 
  Indicate whether the statement is true or false

Question 2

Briefly explain how Hubble's discovery of a relationship between galactic distance and redshift led to the idea of the Big Bang.
 
  What will be an ideal response?


lolol

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

TRUE

Answer to Question 2

Hubble's discovery showed that the universe is expanding. If the universe is expanding, then it should have been smaller in the past. Extrapolating back, there must have been a time when everything was in one placewhich we call the Big Bang.


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