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1. |
Arrange the following gases of the atmosphere in increasing order by volume:I. NitrogenII. OxygenIII. Carbon dioxideIV. Argon? |
A. | I, II, III, IV |
B. | I, II, IV, III |
C. | III, IV, II, I |
D. | IV, III, II, I |
Answer» D. IV, III, II, I | |