The ozone sphere is considered a part of the “chemical sphere” or chemosphere because its properties are defined by intense chemical reactions. Within this region, solar radiation triggers the photolysis of oxygen, leading to the constant formation and destruction of ozone. These chemical processes are more significant here than the physical movements that dominate the lower layers. ANSWER: (B) Ozone sphere
Which part of the atmosphere is a part of the chemical sphere? (A) Troposphere (B) Ozone sphere (C) Thermosphere (D) Ionosphere
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The ozone sphere, located within the stratosphere, is a primary component of the chemosphere. This term refers to the regions of the atmosphere where chemical processes, rather than just physical or thermodynamic ones, determine the air’s composition. In this layer, ultraviolet light drives the Chapman cycle, where oxygen molecules are broken and reformed into ozone. These ongoing chemical reactions absorb solar energy and protect the biosphere from radiation. Because these interactions are the defining characteristic of this atmospheric zone, it is scientifically categorized as a chemical sphere, distinguishing it from the purely weather-driven troposphere found below.
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