Which layer of Earth's atmosphere contains the most weather phenomena?

<p style=";text-align:left;direction:ltr">Arab Weather - The troposphere is located in the closest part of the Earth&#39;s atmosphere, extending from the Earth&#39;s surface to an altitude of approximately 8 to 15 kilometers, and this height varies depending on the geographical location and season. In this layer, most weather phenomena occur, such as clouds, rain, thunderstorms, winds, and changes in temperature.</p><p style=";text-align:left;direction:ltr"> The troposphere contains about 75-80% of the total mass of the atmosphere, and is the densest layer, containing most of the water vapor and atmospheric gases necessary for the formation of weather phenomena.</p>