GEOLOGY

Detailed explanation-1: -The most abundant naturally occurring gas is nitrogen (N2), which makes up about 78% of air. Oxygen (O2) is the second most abundant gas at about 21%. The inert gas argon (Ar) is the third most abundant gas at 0.93%.

Detailed explanation-2: -Oxygen is a major component of the solid earth, along with Si and elements such as Mg, Ca and Na. Nitrogen is not stable as a part of a crystal lattice, so it is not incorporated into the solid Earth. This is one reason why nitrogen is so enriched in the atmosphere relative to oxygen.

Detailed explanation-3: -Earth’s atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases.

Detailed explanation-4: -Answer: In the Earth’s atmosphere, nitrogen is the most abundant gas. The gas oxygen is the second most plentiful. Diatomic molecules exist in each of these gases. The atmosphere of the Earth is made up of 78 percent nitrogen, 21% oxygen, 1% argon, and trace amounts of carbon dioxide and neon.

Detailed explanation-5: -Nitrogen is the most abundant gas present in the atmosphere constituting 78% of air. Oxygen makes up about 21% of air by volume and is the second most abundant gas present in the atmosphere.