Identify the thermal layers of Earth's atmosphere in the figure below.

Question

Quizplus · Accepted Answer

The thermal layers are arranged in order of decreasing temperature as you move away from the Earth's surface. The troposphere is the lowest layer and has the highest temperature gradient. The stratosphere lies above the troposphere and contains the ozone layer that absorbs harmful ultraviolet radiation. The mesosphere lies above the stratosphere and is the coldest layer. Finally, the thermosphere lies above the mesosphere and has a very high temperature due to ionizing radiation from the sun. Therefore, the correct order of thermal layers from bottom to top is troposphere, stratosphere, mesosphere, and thermosphere, making choices B, C, and D incorrect. Out of the remaining choice, A is correct as it matches the correct order of thermal layers with their corresponding letters in the given figure.

Identify the Thermal Layers of Earth's Atmosphere in the Figure