![]() ![]() Often, these pockets are tapped by humans via pipelines and wells, but in some cases the water naturally finds its way to the surface via springs and the like. Groundwater fills the spaces between sediment and rock, creating pockets of trapped water. The underground water system is known as the water table, and contains all types of water that has become trapped below the surface. This water is usually accessed via aquifers, natural springs or wells. There is also an entire system of underground water that is also in liquid form. Everything from lakes and seas, to streams, lagoons, rivers, creeks and springs are forms of liquid water which connect to form the hydrosphere. This can be seen in a variety of places and forms across the earth. The first type of water most commonly thought of, is liquid water. Because it includes all water, this also means that it encompasses water that is found in liquid, vapor, or solid (ie ice) form. as well as water underground, and in the air. This includes the total amount of water that can be found on the whole planet, from that on the surface - like in lakes, oceans, rivers etc. The hydrosphere is the water sphere of Earth. ![]() Read More What Is The Earth's Atmosphere Made Of? Hydrosphere Water cycle allows the hydrosphere to function. ![]() However, this ‘other’ section does include water vapor, neon, carbon dioxide, and methane. percent, which is classified as ‘other’ as no one gas is dominant enough to be significant. The third most prominent gas is argon, which is only 0.9 percent. The second most common gas in our atmosphere is Oxygen, which makes up 21%, and is the most important for both human and animal life. The atmosphere of Earth is actually primarily made from nitrogen, with a composition of 78 percent. The other layers extend outward from the surface, and are encompassed by the last layer, the Exosphere, before our atmosphere completely dissolves into Outer Space. This is also the area in which most organic life lives, on Earth. The Troposphere is the layer which holds the majority of the atmosphere, and is closest to the surface of the earth. The atmosphere can be separated and identified in several of its own layers, of which there are 5: the troposphere, stratosphere, mesosphere, thermosphere and exosphere. The combination of chemicals in the air, as well as the way in which the atmosphere creates a barrier between the Earth and the harmful rays of the sun, makes an environment in which animals, plants and human life can thrive. It is also this atmosphere which makes the earth inhabitable. This keeps the vapours of the atmosphere from escaping into outer space. The Earth’s atmosphere forms a barrier, or bubble around the Earth, and is held there by the force of gravity. The atmosphere of Earth, which we casually refer to as simply ‘air’, is actually made up of a mixture of gases and vapours. The first three of these spheres are abiotic, meaning they are not living things, while the fourth - the biosphere - contains all biotic, or living creatures and organisms (everything from plants, to animals, to bacteria). These categories are known as spheres, and are the lithosphere, hydrosphere, atmosphere and biosphere, respectively. The earth can be split into one of four major subsystems, namely: land, water, air, and all living things. Any threat to one sphere, will have drastic effects on the others. All four spheres must work in harmony to allow for the balance of life to succeed of Earth.The biosphere includes all living life on Earth: animal, plant, fungi, protist and monera.The four spheres of the Earth are: the lithosphere, hydrosphere, biosphere, and atmosphere.
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