Final answer:
The temperature variance in the atmosphere is due to the unique temperature profiles of its layers influenced by radiation and chemical composition.
Explanation:
The temperature of different layers of the atmosphere varies due to the vertical temperature profile of the atmosphere, which is influenced by the types of radiation and the chemical composition of each layer. This results in alternate increases and decreases in temperature as you move through the layers, with a relatively thin transitional zone in between. The atmosphere is divided into layers based on these temperature characteristics, such as the troposphere, stratosphere, mesosphere, and thermosphere.
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