Question

how are clouds formed ?

Answer 1

Clouds form when the invisible water vapour in the air condenses into visible water droplets or ice crystals. There is water around us all the time in the form of tiny gas particles, also known as water vapour. There are also tiny particles floating around in the air - such as salt and dust - these are called aerosols.

Answer 2

Clouds are formed when the air is saturated and can't hold more water vapour, this can happen in two ways ;

1. The amount of water vapour in the air has increased.

2. The air is cooled to its due point.