Question

What is the sequence ? what comes 1stly petroleum or 2ndly natural gas or 3rdly water ?

Answer 1

Dear student!

It depends on the order of densities so that the matter with least density will be first and then the successive since, natural gas has the least density followed by petroleum and then water .

So, the order of density is natural gas> petroleum> water.

Hence the first is natural gas second is petroleum and the third is water in sequence.