Air Pollution - Nitrogen Oxides

5 Questions  I  By L-ionel
This quiz will test your knowledge on Nitrogen Oxides.

  
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1.  They are gases composed of
A.
B.
C.
2.  Name two such gases that causes air pollution
3.  _____ temperatures in the engine causes nitrogen and oxygen to react.
4.  Name some harmful effects these gases cause
5.  What colour is sulfur dioxide?
A.
B.
C.
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