Question

In a petroleum well crude oil is found above water which to property of Petroleum act it possible to form a layer of it above water​

Answer 1

the explanation to this answer is that the crude oil density is lower than the sea water that's why ice floats over the water

Answer 2

Answer:

Firstly petroleum cannot be mixed with water as it is immiscible. Secondly petroleum forms a layer above water as it is lighter in comparison to water.