ESS
Grade-8
Easy

Question

After_________, the sediment turns into a rock, and the decay is turned into gas and petroleum.

  1. 15 years
  2. Million years
  3. Decade
  4. Century

hintHint:

Million years

The correct answer is: Million years


    Oil and gas are formed from organic material mainly deposited as sediments on the seabed and then broken down and transformed over millions of years. If there is a suitable combination of source rock, reservoir rock, cap rock and a trap in an area, recoverable oil and gas deposits may be discovered there.

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