how does  the clouds form?

Water molecules from water bodies change into water vapour and move into the atmosphere by the process of evaporation. Also, the excess water absorbed by plant roots is released through the pores on the surface of leaves by the process of transpiration.

So, air contains water vapor. When warm water rises in the atmosphere it expands and cools. As the air containing water vapor cools, some of the vapor condenses and sticks to tiny dust particles that are floating in air. So what we have now is tiny droplets of water around each dust particle in the cool air. When many such droplets come together they become a white visible cloud.

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Cloud formation starts with evaporation, from water areas or moist ground areas. Warmer air containing water vapor rises into the air until it cools and starts to condense. The tiny droplets of water (or sometimes ice) are what we call clouds. If the air is cooled enough, more liquid water will condense, and the larger droplets will fall as precipitation.

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Clouds form when rising air, through expansion, cools to the point where some of the water vapor molecules "clump together" faster than they are torn apart by their thermal energy. Some of that (invisible) water vapor condenses to form (visible) cloud droplets or ice crystals.

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All air contains water, but near the ground it is usually in the form of an invisible gas called water vapor. When warm air rises, it expands and cools. Cool air can't hold as much water vapor as warm air, so some of the vapor condenses onto tiny pieces of dust that are floating in the air and forms a tiny droplet around each dust particle. When billions of these droplets come together they become a visible cloud.

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Steps for clous Formation are:--

1.Water vapour present in the air.

2.Warm air along with water vapours rises in the atmosphere.

3.Water vapour condenses on dust particles to form tiny water droplets.

4.Several water droplets come together to form cloud


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Water molecules must have a surface on which to collect. The air is constantly full of water. When you look into the sky and see a cloud, it is actually moisture you are seeing. Most of the time, water vapor in the air cannot be seen unless it collects and condenses to form a cloud.

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When air moves up it gets cooler and cooler  .At suffecient heights the air becomes so cool that the water vapour condenses to form tiny drops of water called droplets. These droplets of water remain floating in air  and appear to us as clouds. 

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