Why all weather phenomenon takes place in troposphere?

All weather phenomena occur in the troposphere because it is the lowest layer of Earth's atmosphere, where most of the atmosphere's mass is located. This layer contains water vapor, which is essential for cloud formation and precipitation. Additionally, the troposphere is characterized by temperature decreases with altitude and is where convection currents drive weather patterns. The presence of various gases and moisture in this layer facilitates the dynamic processes that create weather events.