Which of the Following Options of ‘Permanent Gases of the Atmosphere' is the Correct Sequence According to their Percentage by Volume in Atmosphere (Highest to Lowest)?

By K Balaji|Updated : January 31st, 2023

1. N2, CO2, O2, He, Ar

2. Ar, N2, CO2, O2, He

3. N2, CO2, O2, Ar, He

4. N2, O2, Ar, CO2, He

The correct sequence of ‘Permanent gases of the atmosphere according to their percentage by volume in the atmosphere is N2, O2, Ar, CO2, He. Earth’s atmosphere is composed of different gases such as nitrogen, oxygen, argon, carbon dioxide, methane, water vapour, and neon are some of the other gases.

Permanent Gases of the Atmosphere

Numerous gases, including some greenhouse gases and pollutants, are present in the atmosphere. Nitrogen is the most prevalent gas in the atmosphere, followed by oxygen and argon. Nitrogen is essential for the survival of plants, and when we breathe it in, we absorb some of it. Green plants produce oxygen during photosynthesis.

  • An atmosphere is made up of one or more layers of gas that surround it and are kept in place by the planet's gravitational pull.
  • When the atmosphere's temperature is low, and its gravity is strong, a planet can maintain its atmosphere. 
  • The outer region of a star, including the layers above the opaque photosphere, is known as the stellar atmosphere; low-temperature stars may have outer atmospheres with compound molecules.

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)?

N2, O2, Ar, CO2, He is the correct order for the "Permanent Gases of the Atmosphere" according to their percentage by volume in the atmosphere. Nitrogen, oxygen, argon, carbon dioxide, methane, water vapour, neon, and other gases are among those that make up the atmosphere of the Earth. The earth's atmosphere is made up of one or more layers of gas that surround it and are kept in place by the existing gravitational pull on the planet.

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