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Author Question: Earth and Venus both presumably had similar gases outgassed from their volcanoes. Briefly explain ... (Read 83 times)

clippers!

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on: Jul 27, 2018
Earth and Venus both presumably had similar gases outgassed from their volcanoes. Briefly explain how their atmospheres ended up so different.
 
  What will be an ideal response?

Question 2

Once carbon is formed in massive star cores, the majority of nuclei formed form then on will belong to even numbered elements, due to addition to more helium nuclei as alpha particles.
 
  Indicate whether the statement is true or false


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parshano

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

On Venus, water and carbon dioxide remained in the atmosphere. Over time, ultraviolet light split the water molecules and the hydrogen escaped to space. Thus, Venus has no more water today and an atmosphere thick with carbon dioxide. On Earth, water condensed to rain and eventually formed the oceans. Carbon dioxide was absorbed in the oceans and is now locked up in carbonate rocks. Thus, most of the water on Earth remains in the oceans, and most of the carbon dioxide is in rocks, leaving a much thinner atmosphere than that of Venus.

Answer to Question 2

TRUE


clippers!

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


parshano

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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