What is a cork and its uses?

It use a wine and it need to pull out use corkscrew.

add. Cork is the name given to the bark of the cork oak, but 'a cork' is the name given to a tapered plug made from cork, and commonly used to stopper bottles etc.

The cork material in sheet form finds wide use as a gasket material on account of its flexibility.

And as flooring material because of its thermal insulation and comfortable feel.

Because of its impermeability to water, coupled with its low density, it is also used in life jackets for marine use.