The Four Great Earth Realms Cannot Be Isolated ‘Discuss’ the Four Earth Realms Are the Atmosphere, Which Is the Gaseous Film That Surrounds the Earth, the Lithosphere That Is the Outmost Concrete Layer of the Earth That Essay

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THE FOUR GREAT EARTH REALMS CANNOT BE ISOLATED ‘DISCUSS’ The four earth realms are the atmosphere, which is the gaseous film that surrounds the earth, the lithosphere that is the outmost concrete layer of the earth that offers a podium for most life forms. The other realms are the hydrosphere and the biosphere. The four earth realms cannot be isolated, to a greater extent, they cannot be because they have a biological combination in the earth’s structure. On the other hand, they can be isolated because each realm can perform its own function. An atmosphere is an important part of what makes the earth viable. It blocks some of the sun’s dangerous rays from reaching earth. It traps heat, making earth a comfortable temperature and the oxygen within our atmosphere is essential for life.it was created in the 17th century from Greek word “vapour” and “sphere” which is a layer of gases surrounding a planet or other material body of sufficient mass that is held in place by the gravity of the body. Earths atmosphere is mostly Nitrogen (78%) also contains oxygen (21%) used by most organisms for respiration and carbon dioxide used by plants ,algae and cyanobacteria for photosynthesis ,also protects living organisms form genetic damage by solar ultraviolet radiation. Its current composition is the product of billions of years of biochemical modification of the paleo atmosphere by living organisms. Earth’s atmosphere is divided into five layers, the exosphere, the thermosphere, the mesosphere, the stratosphere and the troposphere. Most of the weather and clouds are found in the first layer. The atmosphere thins out in each higher layer until the gases dissipate in space. There is no distinct boundary between the atmosphere and space, but an imaginary line about 68 miles (110 kilometers) from the surface, called the Karman line ,is usually where scientists say atmosphere

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