All the changes in climate and weather takes place in ______________.

Correct option is A

The correct answer is (a) Troposphere.
· The troposphere is the lowest layer of Earth's atmosphere and extends up to about 8 to 15 kilometers above sea level.
· It contains approximately 75% of the atmosphere's mass and virtually all of its water vapor, which is crucial for weather phenomena.
· All weather events, including precipitation, storms, and wind patterns, occur in the troposphere.
· The troposphere is characterized by a decrease in temperature with altitude, promoting vertical mixing and convection, essential for weather dynamics.
Information Booster:
· Thermosphere: This layer is much higher up and contains very thin air. It is where the auroras occur.
· Mesosphere: Located above the stratosphere, it is where meteors burn up upon entering Earth's atmosphere, but it does not influence weather and climate.
· Stratosphere: This layer lies above the troposphere and contains the ozone layer. It is crucial for blocking harmful UV radiation but does not host weather events.