Clouds mainly form in which layer where weather events occur?

Correct answer: Troposphere

Direct answer: C, the troposphere. The atmosphere is divided into layers, and the troposphere is the lowest major layer, extending upward from Earth’s surface. It contains most of the atmosphere’s water vapour and much of its dust, so clouds can form there when moist air rises, cools, and water vapour condenses into tiny droplets or ice crystals. Most everyday weather—such as rain, wind, storms, and clouds—occurs in this layer. A is wrong because the stratosphere lies above the troposphere and is mainly associated with the ozone layer, not ordinary cloud formation. B is wrong because the mesosphere is much higher and extremely cold. D is wrong because the exosphere is the very outer atmospheric region, where ordinary weather does not occur. Memory cue: “Tropo means turning or changing weather.”