SOLAR SYSTEM

Detailed explanation-1: -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.

Detailed explanation-2: -So how did Earth end up with an atmosphere made up of roughly 21 percent of the stuff? The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, 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. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.

Detailed explanation-4: -Troposphere The troposphere starts at ground level and extends about 12 km upwards. This is where all weather occurs and it’s the air that we breathe. A significant amount of the troposphere is just 2 gases. For example, 78% is nitrogen and 21% is oxygen.

Detailed explanation-5: -Typical air consists of about 21 percent oxygen and 78 percent nitrogen, with other trace gases making up the other one percent (including neon, hydrogen, and carbon dioxide.) So, this means that typically without supplemental oxygen you’re breathing in 21 percent oxygen.

Detailed explanation-6: -Earth’s atmosphere composition Nitrogen – about 78% of the atmosphere. Oxygen – about 21% Argon – about 1%