no
We can clean up the fresh water biome if it is unclean.
Water pollution is when water is considered unclean, not fresh enough to drink due to pollution (trash, garbage, waste, etc.)
Drinking water that is not clean
99%
all
it kills the animals and make the water unclean
Highly likely ! Unclean water could contain bacteria that can enter a persons bloodstream via the newly pierced hole !
This depends on what you consider to be 'unclean'. Visibly unclean water would normally have been caused by mud/algae and thus be brown/red/green. The water could however have been polluted by something else, possibly a metal ore or salt, which could give rise to another colour. You could also consider bacteria to make water unclean, in which case it would often have no unusual colouring at all.
boiled it
unclean air to breathe, unclean water to drink, trashed streets and parks for all the little kids and dogs.
the Great Lakes are fresh water.( the largest fresh water lakes in the world.)
There is medicine to cure some diseases from unclean water.