love2run5kgirl love2run5kgirl
  • 17-02-2018
  • Biology
contestada

The automobile engine is the largest source of (blank) gas.
a. Carbon Monoxide
b. Carbon dioxide
c. Sulfur dioxide
d. Nitrogen dioxide

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LaylaNicolex
LaylaNicolex LaylaNicolex
  • 17-02-2018
I has to be d. Nitrogen Dioxide.
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momocupcake6 momocupcake6
  • 17-02-2018
I think that it may be a. Carbon Monoxide
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