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abunting abunting
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6 years ago
Ozone depletion at high levels in the atmosphere is caused by:
 a. greenhouse gases b. lightning
  c. chlorofluorocarbons d. vehicle exhaust
  e. burning coal
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aaaimeaaaime
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6 years ago
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abunting Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
my life
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Thanks
2ne1_12345
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2 hours ago
This helped my grade so much Perfect
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