As long as you are around fluids, there is a possibility of drowning.
They have to run out of energy sometime while swimming! So it is possible to drown.
It is possible for a whale to drown. Whales are mammals and do not have gills, they must go to the surface to breath.
While you are tripping basically anything could happen or you think is happening
An overdose of both substances is possible. While a PCP overdose could certainly prove fatal, an overdose of LSD is very rarely fatal and would likely cause only an extremely unpleasant and overwhelming altered state with anxiety and panic.
Has been for a while.
No
It depends on the plant if it is heavy it will sink but not drown if it is light it will float
yes you could still have water in your lungs and you can drown in your lungs.
Yes.
While tolerance to the effects of LSD can develop, it is unlikely to cause dependence.
no he did not drown
Not at all.