SOLAR SYSTEM

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%.

Detailed explanation-2: -Nitrogen is the most abundant gas in the Earth’s atmosphere. Oxygen is the second most abundant gas. Both of these gases are made up of two atoms. The atmosphere of the Earth is made up of about 78% nitrogen, 21% oxygen, 1% argon, and trace quantities of other gases like carbon dioxide and neon.

Detailed explanation-3: -The most abundant gas in the atmosphere is nitrogen.

Detailed explanation-4: -Air is mostly gas The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of other gases, too, such as carbon dioxide, neon, and hydrogen.