फेन (fan)की खास बात क्या है ?

फूल की खास बात क्या है ?
छाता की खास बात क्या है ?

the feature of the fan is that they collect the hot air and then they only release cold air
the feature of the flower is that they these are the only part of the plant that reproduce seeds
the feature of the umbrella that it is an opaque object that blocks light and also blocks water