Question

What percentage of the earth's atmosphere is Hydrogen?

Answer 1

Atmosphere:

• "Atmosphere is a mixture of different gases and it envelopes the earth all around."
• It consists of several gases like Nitrogen, Oxygen, Carbon dioxide, Argon, Helium, Neon, Methane, Krypton and Hydrogen along with water vapour.

Percentage of Hydrogen in Earth's atmosphere:

• The amount of hydrogen in the atmosphere is very small and is found mostly in the form of water vapour.
• Around $0.00005\%$ of the earth's atmosphere is Hydrogen.