Liquified natural gas is used as fuel for vehicles.

Natural gas liquids are extracted during the production process.

A leopard cannot change its spots.

He naturally has talent for music.

Natural landscapes are beautiful.

The flowers are beautiful and natural.

She is a natural beauty.

Natural numbers are positive numbers without a decimal point.

Natural selections favor the survival of the best-adapted species.

Natural selection is a key process in the theory of evolution.