Petroleum is oil it provides a third of the worlds energy that we as humans use. But it is very toxic to the environment for instants If there is a oil spill it can badly pollute the water and kill animals living close by much more animals are forced to abandon their homes. It can also affect the atmosphere when there is a oil spill it can evaporate it to atmosphere form into greenhouse gasses

Petroleum is found deep under ground it takes millions of years to form into oil it is pushed down and it develops into more oil like

Petroleum oil is found in many places around the world but there are for countries in particular Saudi Arabia, Kuwait, united Arab Emirates and Iran hold half the world petroleum oil known.