Multiple choice

Which of the following gases gets accumulated above the surface of petroleum oil during its formation?

  1. Biogas

  2. Natural gas

  3. Coal gas

  4. Methane

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Natural gas accumulates above the surface of petroleum oil during its formation. Methane is formed in a natural way or obtained during the formation of petroleum oil. Biogas is produced by biological breakdown of organic matter in the absence of oxygen. Coal gas is obtained as a by-product during the processing of coal so as to obtain coke.