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1. |
Arrange the following components in decreasing order according to their percentage present in air. |
A. | Nitrogen, Oxygen, Argon, Carbon dioxide. |
B. | Oxygen, Argon, Carbon dioxide, Nitrogen. |
C. | Nitrogen, Carbon dioxide, Oxygen, Argon. |
D. | Nitrogen, Oxygen, Carbon dioxide, Argon. |
E. | None of these |
Answer» B. Oxygen, Argon, Carbon dioxide, Nitrogen. | |