Linked from
The 11 pages that link to Petrochemical, each with the reason it gives.
Fossil fuelRelated: Fossil fuels serve as raw materials as well as sources of energy.
PetroleumRelated: Petroleum supplies feedstocks for plastics, solvents, and many other chemicals.
StyreneNarrower topic: Modern styrene production belongs to the large-scale petrochemical industry.
Crude oilRelated: Crude oil supplies feedstocks for plastics, solvents, and many other materials.
Mukesh AmbaniNarrower topic: Petrochemicals remain a core part of Reliance's industrial base.