Atmosphere Gallery
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Atmosphere is the air around us that we breathe. It is composed of a mixture of gases, primarily nitrogen and oxygen, as well as water vapor and other trace gases. The atmosphere plays an important role in sustaining life on Earth by providing oxygen for respiration, moderating temperatures, and protecting us from harmful radiation from the sun.
The atmosphere is divided into several layers based on temperature: the troposphere (closest to Earth), stratosphere, mesosphere, thermosphere and exosphere (farthest away). Each layer has its own unique characteristics which are determined by its distance from the surface of Earth. The troposphere contains most of our weather systems such as clouds and storms; it also contains most of our air pollution. The stratosphere contains ozone which absorbs ultraviolet radiation from the sun; this helps protect us from skin cancer caused by UV rays. The mesopause marks the boundary between the mesopause and thermosphere; it is extremely cold here due to lack of atmospheric pressure or heat transfer with other layers above or below it. Finally, in the exospheric layer there are no molecules present so temperatures can reach thousands of degrees Celsius!
The atmosphere also plays an important role in climate change due to its ability to trap heat energy within itself through a process known as “greenhouse effect”. This occurs when certain gases such as carbon dioxide absorb infrared radiation emitted by Earth’s surface and re-emit it back towards Earth’s surface causing a warming effect over time if left unchecked. This phenomenon has been linked to global warming which can have devastating effects on ecosystems around world if not addressed soon enough!
In conclusion, atmosphere is essential for life on earth because it provides oxygen for respiration, moderates temperatures across regions/seasons, protects us from harmful UV rays with ozone layer present in stratospheric layer etc., but at same time human activities like burning fossil fuels are leading to increase in greenhouse gases like carbon dioxide which can cause global warming if left unchecked!