<h2>Petroleum that is worthwhile extracting is usually found trapped in layers of permeable rocks by other layers of impermeable rock, but more recently reserves of gas and oil are being extracted from shale which is an impermeable rock but is porous in the sense that there are spaces (pores) within its structure in which ...</h2>
because neptune has been identified has a water planet but the water there has to much acid and you can die if you swin in it but it is more than 75% water.
Both are catastrophic, so I would pick neither, but the beginning may be more enjoyable, because you get to live. At the end of the world you will most likely die.
