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Author Question: Ozone is ________. In the upper atmosphere it ________. a. O3; is a pollutant. b. O2; absorbs ... (Read 36 times)

Haya94

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on: Aug 22, 2018
Ozone is ________. In the upper atmosphere it ________.
 a. O3; is a pollutant.
 b. O2; absorbs ultraviolet energy
 c. O3; absorbs ultraviolet energy.
 d. O2; is a pollutant.

Question 2

Americans generate ________ metric tons of plastic waste each year.
 a. 34 billion
 b. 34 million
 c. 100 million
 d. 10 million


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sokh

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Reply #1 on: Aug 22, 2018
Answer to Question 1

c

Answer to Question 2

b


Haya94

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Reply 2 on: Aug 22, 2018
Gracias!

debra928

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Reply 3 on: Yesterday
Excellent

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