Question: Why do natural gas and oil rise into oil traps? Need Assignment Help?
Group of answer choices
- they flow in all directions once formed, and some happens to end up in the trap.
- oil and gas don't rise per se, the stay in the source rock. Subsequently they are pumped out.
- they boil, under the conditions found in the source region, and therefore are forced upwards.
- they are less dense than surrounding rock (and water), thus rise upwards.
- the pressure in the planet squeezes oil and gas upwards