ilmassaan

Ilmassaan is a Finnish word that translates to "air" in English. It refers to the mixture of gases that surrounds the Earth, primarily consisting of nitrogen (about 78%), oxygen (about 21%), and trace amounts of other gases such as argon, carbon dioxide, and neon. The atmosphere plays a crucial role in supporting life on Earth by providing the oxygen necessary for respiration and protecting the planet from harmful solar radiation.

The atmosphere is divided into several layers, each with distinct characteristics. The troposphere, the lowest layer, is where weather phenomena occur and is the layer in which humans live. Above the troposphere lies the stratosphere, which contains the ozone layer that absorbs most of the Sun's ultraviolet radiation. The mesosphere and thermosphere are the next layers, followed by the exosphere, the outermost layer that gradually transitions into the vacuum of space.

Ilmassaan is essential for various natural processes, including weather patterns, climate regulation, and the water cycle. It also plays a significant role in human activities, such as aviation, meteorology, and environmental science. Understanding the composition and dynamics of the atmosphere is vital for addressing global challenges like climate change and air pollution.