The region of the Earth's atmosphere where weather events occur is known as the:

The correct answer is Troposphere.

Key Points

• The troposphere is the lowest layer of the Earth's atmosphere and extends from the Earth's surface up to an average height of about 8–15 km, depending on the latitude and season.
• This layer contains approximately 75% of the atmosphere's mass and nearly all of its water vapor, making it crucial for weather phenomena.
• Weather events such as rain, snow, storms, and winds occur in the troposphere due to the presence of water vapor and temperature variations.
• The temperature in the troposphere generally decreases with altitude, at an average rate of 6.5°C per kilometer (known as the lapse rate).
• The boundary between the troposphere and the stratosphere is known as the tropopause, which acts as a barrier preventing the mixing of air between the two layers.
• This layer also plays an important role in the Earth’s climate system, as it contains the greenhouse gases that regulate surface temperatures.
• The troposphere is where human activities such as aviation and pollution primarily occur, influencing its composition and dynamics.

Additional Information

• Mesosphere
  • The mesosphere is the third layer of the atmosphere, located above the stratosphere and below the thermosphere.
  • It extends from about 50 to 85 km above the Earth's surface.
  • It is the coldest atmospheric layer, with temperatures dropping as low as -90°C.
  • This layer is where meteors burn up upon entering the Earth's atmosphere, creating shooting stars.
• Stratosphere
  • The stratosphere lies above the troposphere and extends from about 15 to 50 km above the Earth's surface.
  • It contains the ozone layer, which absorbs and scatters ultraviolet solar radiation, protecting life on Earth.
  • In contrast to the troposphere, the temperature in the stratosphere increases with altitude due to the absorption of UV radiation by ozone.
  • This layer is also relatively stable, making it suitable for commercial aviation.
• Exosphere
  • The exosphere is the outermost layer of the atmosphere, extending from about 500 km above the Earth's surface to the edge of space.
  • This layer contains very few air molecules and is where satellites orbit.
  • The particles in the exosphere can escape into space due to the low gravity pull at these altitudes.