How clods are formed?

Answer 1

As you know, heat from the sun causes water from earth's lakes and other bodies of water to evaporate. As it evaporates, water rises in the atmosphere. As the air rises, it cools because it is not only expanding, but it is traveling further away from the heat source. Eventually the air will cool to its dewpoint. AT that point, the air is saturated and the water vapor can condense onto tiny particles called condensation nuclei. When enough droplets condense, they become visible and we see them as clouds. So basically, water vapor clumps together because over time it saturates the air to a point where it starts to combine. The low temperature of the higher point in the atmosphere causes the water molecules to contract so that causes it to 'clump' too. And don't you mean cloudshttp://en.wikipedia.org/wiki/Clouds

Answer 2

A cloud is water in the atmosphere (air) that we can see. It is where rain and snow comes from.

Water on the earth evaporates (turns into an invisible gas) and rises up into the sky. Higher up where the air is colder, the water condenses: it changes from a gas to drops of water or crystals of ice. We see these drops of water as clouds. The drops fall back down to earth as rain, and then the water evaporates again. This is called the "water cycle".

- https://simple.wikipedia.org/wiki/Cloud