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The study introduces that geography is regarded as the study of place and the relationship between people and their environments. Geography explores both the physical properties of the earth’s surface and the human societies spread across it. The Earth’s atmosphere is composed of more than the area people breathe. Furthermore, the atmosphere based on the temperature layers is the troposphere, stratosphere, mesosphere, and thermosphere. The air is one of the necessary elements along all of the composite materials for the existence of life. Necessary breathing atmospheric elements oxygen is present in the saturated form for the human being, and animals. Carbon Dioxide and nitrogenous elements are also present in the atmosphere for the plant.
Table of content
Atmosphere
An atmosphere is the layers of gases surrounding a planet or other celestial body. The atmosphere is the meaning of the air surrounding the earth. In other words, the atmosphere is a mixture of different gaseous products like oxygen, carbon dioxide, nitrogen, and other gases. In addition to this, it works as an envelope for the earth around and heads out due to the gravitational effect. Atmosphere layers also prevent the earth creatures from ultraviolet wavelength rays that are bound in the necessary temperature for human life. Generally, in research or geography books it is said that generally about up to 1600 kilometers from the earth’s surface-atmosphere exists. Moreover, 99% of the total mass of the atmosphere is present in around only up to 32 kilometers from the earth’s surface.
Atmosphere Composition Elements
The atmosphere is made of a mixture of different gases, water vapours, and lots of dust particles. Atmosphere composition elements ratio varies from place to place and on geographical conditions. According to national geographical survey reports, the earth’s atmosphere is mostly composed of nitrogen gas 78%, oxygen 21%, and argon 0.9%, carbon dioxide 0.03%, and remaining in other gases. Methane, neon, phosphorus are other gases with a presence of about 0.1%. The presence of ozone gas works as a prohibition or for ultraviolet rays that are major causes of temperature imbalance and skin disease. The ozone layer works as a filter and has the capacity to absorb ultraviolet radiation from the sun’s light and prevent this light from reaching the earth’s surface. Water vapour present in the atmosphere causes rain on the earth’s surface. The main work of this is to act as a blanket for imbalance earth’s surface heating.
Layers of Atmosphere
Mainly the earth’s atmosphere of layers is made of 5 layers that are subdivided according to temperature diversity and density.
Troposphere
This is the lowermost layer of the atmosphere. The geographical location height of the troposphere on the equator is approx 18 kilometres and 8 kilometres per pole. Troposphere thickness on the equator is maximums due to heat transportation up to greater heights by a strong flow of convection currents. This is the most significant layer in all of the atmospheric layers because all of the weather changes take place in this lowermost layer.
Stratosphere
The next layer of the stratosphere is just above the troposphere. The height extension of this layer is about up to 50 km. almost the same temperature up to 20 km above that temperature increases continuously due to the presence of ozone gas in the upper part of this layer. Ozone gas works as an inhibitor for ultraviolet rays that are major causes of temperature imbalance and skin disease. Ozone layers work as a filter and have the capacity to absorb ultraviolet radiation from the sun’s light and prevent this light from reaching the earth’s surface.
Mesosphere
The presence of these layers is between 50 kilometres to 80 kilometres. Observation is that temperature starts to decrease as much altitude grows and reaches up to 100 degrees centigrade at the topmost height.
- Thermosphere
The layers also contain electrically charged particles also known as ions called the ionosphere. Radio wavelength broadcasting is due to reflection from these layers. The temperature increases in this region because of ultraviolet light presence.
Exosphere
The exosphere is the uppermost atmospheric layer. Gases are present in the dispersed phase due to the lack of earth gravitational forces. Air density is also low in these layers because of the far distance from earth surfaces.
Conclusion
The study concludes that the atmosphere provides oxygen to be breathed and carbon dioxide for plants to live. Moreover, it is the atmosphere that provides a lot more air to living organisms and it is necessary to breathe the atmosphere elements. The oxygen is present and saturated for all human beings and animals. The atmosphere layer also prevents the earth creatures from ultraviolet wavelength rays that are bound to the necessary temperature for human life. In addition, it is made up of a mixture of different gases, water vapours, and a lot of dust particles.
