What are the three important gases present in air?
A) oxygen
B) nitrogen
C) helium
D) argon
ONE is not belong to the group
(need helpful answer)
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What are the three important gases present in air?
A) oxygen
B) nitrogen
C) helium
D) argon
ONE is not belong to the group
(need helpful answer)
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Answer:
For me Its letter D
Explanation:
Tell me if im wrong :)