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Author Question: The principal gases responsible for the greenhouse effect are a. water vapor and oxygen. b. oxygen ... (Read 56 times)

chads108

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The principal gases responsible for the greenhouse effect are
 a. water vapor and oxygen.
  b. oxygen and nitrogen.
  c. carbon dioxide and nitrogen.
  d. carbon dioxide and water vapor.

Question 2

Who discovered the electron in 1897?
 a. Ernest Rutherford
  b. James Chadwick
  c. J. J. Thomson
  d. Niels Bohr



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poopface

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Answer to Question 1

d

Answer to Question 2

c




chads108

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Reply 2 on: Jul 28, 2018
:D TYSM


recede

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Reply 3 on: Yesterday
Gracias!

 

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