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Author Question: The eccentricity of Earth's orbit A) has been increasing. B) changes cyclically on several ... (Read 35 times)

mwit1967

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on: Jul 14, 2018
The eccentricity of Earth's orbit
 
  A) has been increasing.
  B) changes cyclically on several scales.
  C) is currently zero, meaning Earth has a circular orbit.
  D) varies between 3 and 8 percent.

Question 2

Should Earth be considered a warm planet or a cold planet? Explain your response.
 
  What will be an ideal response?


joneynes

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: Earth is most accurately described as a warm planet punctuated by multiple relatively brief ice ages. Warm episodes last for hundreds of millions of years to a few billion years, whereas cold episodes last for tens to hundreds of millions of years.


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