petroleum is found under layers and layers of sedimentary rocks. to get to petroleum it has to be mined. after it has been mined out is taken to something called a petroleum refinery were it is used to make many different things.
there are many diffferent things that petroleum is used for. if we go to this link i can show you exactly what petroleum is used for.........
every one on earth uses petroleum. if you drive a car and fill it up with gasoline, paint your finger nails, put on deoderant you are most definitly using petroleum.
petroleum is very expensive, depending on what you buy or use petroleum for.
petroleum is often called a fossil fuel. It is called a fossil fuel because it was formed from the remains of
tiny sea plants and animals that died millions of years ago. When the
plants and animals died, they sank to the bottom of the oceans.
Here, they were buried by thousands of feet of sand and sediment.