Question

Which two reasons describe why certain areas contain more petroleum?

A.
The areas contained water.

B.
The areas contained organic matter.

C.
The areas contained a lot of rock.

D.
The areas were covered by a desert.

E.
The areas had high surface temperatures.

Answer 1

A and B.

Petroleum forms from buried organic matter (B) that accumulated in sedimentary basins—often in marine or lake environments (A) where organisms lived and their remains were buried in sediments. Deserts, simply having lots of rock, or high surface temperatures are not the primary reasons.