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Author Question: The most abundant gas in the Earth's atmosphere is A) helium. B) nitrogen. C) hydrogen. D) ... (Read 80 times)

sheilaspns

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on: Jul 27, 2018
The most abundant gas in the Earth's atmosphere is
 
  A) helium. B) nitrogen. C) hydrogen. D) oxygen. E) water vapor.

Question 2

A comet that has an orbit around the Sun inclined to the ecliptic plane by 65 probably originated in the Kuiper belt.
 
  Indicate whether the statement is true or false


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apple

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

B

Answer to Question 2

FALSE


sheilaspns

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Reply 2 on: Jul 27, 2018
Gracias!

Viet Thy

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Reply 3 on: Yesterday
Excellent

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