atmosphere

Atmosphere is the layer of gases that surrounds Earth. It is made up of mostly nitrogen and oxygen, with smaller amounts of other gases like carbon dioxide, water vapour, and argon.

The atmosphere is important for life on Earth. It protects us from the harmful radiation from the Sun, and it helps to keep the Earth warm. The atmosphere also helps to distribute water vapour around the globe, which is important for rain and snow.

Here are some of the gases that make up the atmosphere:

• Nitrogen: Nitrogen is the most abundant gas in the atmosphere. It makes up about 78% of the atmosphere.
• Oxygen: Oxygen is the second most abundant gas in the atmosphere. It makes up about 21% of the atmosphere.
• Carbon dioxide: Carbon dioxide is a greenhouse gas. It makes up about 0.04% of the atmosphere.
• Water vapour: Water vapour is the gas form of water. It makes up about 0.01% of the atmosphere.
• Argon: Argon is a noble gas. It makes up about 0.93% of the atmosphere.

The Earth's atmosphere is essential for life, as it provides oxygen for breathing and protects us from harmful radiation.