Prices surged after the administration imposed what officials called "most significant sanctions yet on Russia's energy ...

Crude oil is a finite resource. Petrol and other fuels are produced from it using fractional distillation. Cracking is used to convert long alkanes into shorter, more useful hydrocarbons.

The questions in this quiz are suitable for GCSE chemistry students studying crude oil and hydrocarbons separating crude oil and cracking and alkenes. If you struggled with the quiz, don't panic ...

Since October, when the Biden administration started cracking down on Iran-linked tankers, their crude deliveries to China, which buys nearly all of Iran’s oil, have shrunk by a quarter ...