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Author Question: Which of these gases has the greatest global warming potential rating? a. carbon dioxide c. ... (Read 86 times)

CQXA

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on: Jul 21, 2018
Which of these gases has the greatest global warming potential rating?
 
  a. carbon dioxide c. nitrous oxide
  b. methane d. hydrogen

Question 2

How many holes does an oxyfuel welding tip have?
 
 

a. four c. two
  b. three d. one



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allisonblackmore

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Reply #1 on: Jul 21, 2018
Answer to Question 1

C

Answer to Question 2

D


CQXA

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Reply 2 on: Jul 21, 2018
Wow, this really help

Joy Chen

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Reply 3 on: Yesterday
Gracias!

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