Layers in which the temperature increases with height are:

Layers in which the temperature increases with height are:

• A. Troposphere and stratosphere
• B. Stratosphere and thermosphere
• C. Mesosphere and troposphere
• D. Lower atmosphere and upper atmosphere

Answer: (B)

The correct choice highlights that both the stratosphere and thermosphere are layers of the atmosphere where temperature increases with height. In the stratosphere, which lies above the troposphere, the temperature rises due to the absorption of ultraviolet radiation by ozone. This phenomenon leads to a warmer environment in the upper levels of the stratosphere compared to the cooler air at its base. Moving upward to the thermosphere, the temperature again increases significantly with altitude. In this layer, the very thin air absorbs high-energy solar radiation, resulting in extremely hot temperatures, sometimes exceeding 2,500 degrees Celsius (4,500 degrees Fahrenheit). Thus, these two layers uniquely exhibit a temperature increase with altitude, differentiating them from other atmospheric layers, where temperatures typically decrease with height. In contrast, the troposphere experiences a decrease in temperature with altitude, making it unsuitable for this question. Furthermore, while the term "lower atmosphere and upper atmosphere" may seem logical, it does not accurately define specific atmospheric layers like the stratosphere and thermosphere do.

The correct choice highlights that both the stratosphere and thermosphere are layers of the atmosphere where temperature increases with height. In the stratosphere, which lies above the troposphere, the temperature rises due to the absorption of ultraviolet radiation by ozone. This phenomenon leads to a warmer environment in the upper levels of the stratosphere compared to the cooler air at its base.

Moving upward to the thermosphere, the temperature again increases significantly with altitude. In this layer, the very thin air absorbs high-energy solar radiation, resulting in extremely hot temperatures, sometimes exceeding 2,500 degrees Celsius (4,500 degrees Fahrenheit). Thus, these two layers uniquely exhibit a temperature increase with altitude, differentiating them from other atmospheric layers, where temperatures typically decrease with height.

In contrast, the troposphere experiences a decrease in temperature with altitude, making it unsuitable for this question. Furthermore, while the term "lower atmosphere and upper atmosphere" may seem logical, it does not accurately define specific atmospheric layers like the stratosphere and thermosphere do.