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Author Question: The greenhouse effect occurs on Earth because carbon dioxide is a. transparent to visible light ... (Read 72 times)

geodog55

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on: Jul 27, 2018
The greenhouse effect occurs on Earth because carbon dioxide is
 
  a. transparent to visible light and opaque to infrared radiation.
  b. opaque to visible light and transparent to infrared radiation.
  c. totally opaque to both visible light and infrared radiation.
  d. totally opaque to both visible light and infrared radiation.

Question 2

The oxygen in Earth's atmosphere
 
  a. was manufactured inside stars.
  b. was added to the atmosphere by plant life.
  c. has grown more abundant since the origin of Earth.
  d. was manufactured inside stars, was added to the atmosphere by plant life, and has grown more abundant since the origin of Earth.
  e. None of the other choices are correct.


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ecabral0

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

a

Answer to Question 2

d


geodog55

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Reply 2 on: Jul 27, 2018
Wow, this really help

cdmart10

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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