Which one of the following is the correct sequence of layers as we move from the Earth’s surface upwards?
[amp_mcq option1=”Troposphere, Stratosphere, Thermosphere, Mesosphere” option2=”Troposphere, Stratosphere, Mesosphere, Thermosphere” option3=”Thermosphere, Mesosphere, Stratosphere, Troposphere” option4=”Stratosphere, Mesosphere, Troposphere, Thermosphere” correct=”option2″]
This question was previously asked in
UPSC NDA-2 – 2021
1. **Troposphere:** The lowest layer, where most weather occurs. Temperature generally decreases with altitude.
2. **Stratosphere:** Above the troposphere, contains the ozone layer. Temperature increases with altitude due to ozone absorption of UV radiation.
3. **Mesosphere:** Above the stratosphere. Temperature decreases with altitude; it is the coldest layer. Most meteors burn up here.
4. **Thermosphere:** Above the mesosphere. Temperature increases sharply with altitude due to absorption of high-energy solar radiation by sparse gas molecules. The International Space Station orbits here.
Above the thermosphere is the Exosphere, transitioning into outer space.