Explain the composition of the atmosphere.

The earth's atmosphere is the mixture of gases and other particles that surrounds the earth. It is the air that we are surrounded by. It is the layer of the blanket that sounds the earth and ensures the operation of gravity. The atmosphere consists of a combination of different gases, water vapour, and other particles.

Nitrogen has the highest dominance in the composition of gases in the atmosphere. It accounts for 78% of the atmospheric gases. Next comes oxygen that accounts for just 21% of the atmosphere. Apart from this, other gases like argon, neon, carbon dioxide, methane, ozone, and other gases make up a total of 0.03% of gases. Apart from these, the atmosphere also consists of water vapour. It can also be considered as a gas that accounts for 0.4% of the total volume of the atmosphere.

Other than the combination of gases, the atmosphere also consists of other dust particles known as particulate matter. They can be the results of a natural process like storms or forest fires and human interferences like the burning of fossil fuels. They also determine the life in the ecosystem. They are responsible for the colourful sunsets and sunrises and the drizzling of hailstones during rainfall. They can have many negative consequences like disruption of photosynthesis due to the excessive composition of the particulate matter.