Question
The lowest temperature is observed in which layer of the atmosphere ?
The correct answer is
Mesosphere
Mesosphere: Coldest Atmospheric Layer
The lowest temperature in Earth's atmosphere is observed in the Mesosphere. This layer is located above the stratosphere and below the thermosphere.
Atmospheric Temperature Trends
Understanding the temperature changes in different atmospheric layers helps identify the coldest one:
- Troposphere: Temperature generally decreases with increasing altitude.
- Stratosphere: Temperature increases with altitude due to the absorption of UV radiation by the ozone layer.
- Mesosphere: Temperature decreases significantly with altitude, reaching the coldest temperatures in the entire atmosphere, averaging around -90°C (-130°F) at the top.
- Thermosphere: Temperature increases dramatically with altitude, but the air density is extremely low.
Therefore, the Mesosphere is characterized by the lowest observed temperatures.
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Important Questions from Atmosphere
- What is atmospheric window?
- Which one of the following gas was not released through volcanoes around 4 billion years ago?
Absolute humidity in atmosphere at $ 10^\circ $ is $5.0$ g/m$^3$ and maximum amount of water air can hold at same temperature is $ 10$ g m$^3$. What will be the relative humidity at the same temperature?
- The change of atmospheric air temperature with altitude is _____
- Assertion (A) : Warmth of sun’s rays is advantageous during evening time.
Reason (R) : Evening air contains moisture which absorbs the heat and allows the light.
Select the most appropriate option :
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