Multiple choice

Oil, water and gas can be present in a well in the ascending order of

  1. water, oil, gas

  2. gas, water, oil

  3. water, gas, oil

  4. oil, water, gas
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Oil, water, and gas separate based on density. Gas is the least dense and rises to the top, oil is in the middle, and water is the densest, settling at the bottom.

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