Multiple choice

Directions: Select the correct alternative from the given choices.

In oil wells, oil, water and gas are present in the ascending order of

  1. water, oil, gas.

  2. oil, water, gas

  3. gas, oil, water

  4. water, gas, oil

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

Due to differences in density, gas is the lightest and rises to the top, oil is in the middle, and water is the densest, settling at the bottom of the reservoir.