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Author Question: Smog contains ________, which is an irritant to lungs and eyes. A) N2 B) O3 C) CO2 D) ... (Read 74 times)

CQXA

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on: Jun 23, 2018
Smog contains ________, which is an irritant to lungs and eyes.
 
  A) N2 B) O3 C) CO2 D) O2

Question 2

Which type of hammer is plastic coated, has a metal casing inside, and is filled with small lead balls?
 
  A) Soft-blow hammer B) Plastic hammer
  C) Dead-blow hammer D) Sledgehammer


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wergv

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Reply #1 on: Jun 23, 2018
Answer to Question 1

B

Answer to Question 2

C


CQXA

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Reply 2 on: Jun 23, 2018
Gracias!

diana chang

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Reply 3 on: Yesterday
Excellent

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