The process known as a sexchance is when a personals sexual characteristics are swapped out for that of the opposite gender
i have never heard of that before, where does this happen mainly? or where did it start
I don't know when it was first done by humans, but it can naturally occur in some specials of animals
oh that is cool, what else can you tell me about this 
in many coral reef fishes the natural sexchange process is a common occurrence. 
is this happening due to our waste getting into the water?
no it is just common among clownfish, wrasses, moray eels, gobies, and other fish.  They even change their reproductive organs.
oh that is very interesting, you learn something new every day.
Sex change
Sex change is a process by which a person or animal changes sex – that is, by which female sexual characteristics are substituted for male ones or vice versa. Sex change may occur naturally, as in the case of the sequential hermaphroditism observed in some species. Most commonly, however, the term is used for sex reassignment therapy, including sex reassignment surgery, carried out on humans. It is also sometimes used for the medical procedures applied to intersex people. The term may also be applied to the broader
na happen. Then I did know when that was going to happen as things moved along. It wasn't toward later I knew when and how because it wasn't all known early on." She also spoke about doing her own stunts for the death scene, "I did them all! I worked with this incredible stunt double on a couple of things and she was able to work on this job. I had never done wires before. She did some incredible stuff too but I was able to do the whole