Answer: The correct sequence of ‘Permanent gases of the atmosphere according to their percentage by volume in the atmosphere is N2, O2, Ar, CO2, He.
The atmosphere encompasses many gases including some pollutants and greenhouse gases. The most plentiful gas in the atmosphere is Nitrogen followed by Oxygen and Argon. Plants need nitrogen for their survival and we take some amount of nitrogen when we inhale. Oxygen is produced by the green plants during photosynthesis.
Permanent Gases of the Atmosphere
The details of various gases in the air can be seen in the table given below.
Constituent | Formula | Percentage |
Nitrogen | N2 | 78.08 |
Oxygen | O2 | 20.95 |
Argon | Ar | 0.93 |
Carbon dioxide | CO2 | 0.036 |
Neon | Ne | 0.002 |
Helium | He | 0.0005 |
Krypto | Kr | 0.001 |
Xenon | Xe | 0.00009 |
Hydrogen | H2 | 0.00005 |
Summary:
Which of the following options of ‘Permanent gases of the atmosphere is the correct sequence according to their percentage by volume in the atmosphere (highest to lowest)?
The correct sequence of ‘Permanent gases of the atmosphere according to their percentage by volume in the atmosphere is N2, O2, Ar, CO2, He.
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