Respuesta :
The lithosphere, that is, the solid earth is formed of a limited number of elements and is mainly composed of silicon and oxygen. Hydrosphere refers to all the waters on the Earth, that is, oceans, surface water, glaciers, and groundwater. It is formed of a limited number of elements and is mainly composed of hydrogen and oxygen.
The biosphere is the sum total of all the living matter and is formed of a limited number of elements comprising carbon, oxygen, nitrogen, hydrogen, phosphorus, and calcium. Atmosphere refers to the layers of gas around the planet Earth and is comprised of a limited number of elements, mainly the oxygen and nitrogen.
Thus, it can be said that very less percentage of elements are found in significant amounts in Earth’s biosphere, lithosphere, hydrosphere, and atmosphere in comparison to the total number of elements listed on the periodic table.
A pure substance composed of only a single type of atom is called an element. The percentage of elements in the spheres of the earth is less compared to the periodic table.
What is the elemental distribution in the spheres?
The solid or the surface of the earth is called the lithosphere and contains limited elements like oxygen, nitrogen and silicon. The water surface of the planet is called the hydrosphere and includes oxygen, hydrogen and carbon dioxide.
The atmosphere is the layer composed of air and comprises carbon, nitrogen, oxygen, methane, hydrogen etc. The living organisms comprise the biosphere and are made up of carbon, hydrogen, oxygen, phosphorus, calcium, magnesium etc.
Therefore, the spheres have less amount of element distribution compared to the ones listed in the periodic table.
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