Mcca1xcoleb1anneN
Mcca1xcoleb1anneN Mcca1xcoleb1anneN
  • 24-07-2016
  • Geography
contestada

Today's atmosphere is full of nitrogen and oxygen. These are _____.

A. trace gases
B. variable gases
C. primary gases
D. secondary gases

Respuesta :

hanima
hanima hanima
  • 24-07-2016
There are C. primary gases
Answer Link
jsteen2004
jsteen2004 jsteen2004
  • 10-10-2019

Today's atmosphere is full of nitrogen and oxygen. These are primary gases.

Answer Link

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