Pretty much everything except helium freezes if you get it cold enough (helium remains liquid at normal atmospheric pressure even at absolute zero because of quantum effects).
Cold water
it effects your mom
You can either use chlorine bleach or ammonia mixed with cold water. Do not mix ammonia and chlorine bleach.
no they prefer pools in caves where they can mine and harrass snow white bunny
It's still poisonous, but when diluted with water, such as in the form of the sodium hypochlorite(bleach) / calcium hypochlorite solution used in swimming pools, the concentration becomes so low that it relatively harmless, yet still a powerful disinfectant. These solutions are still dangerous of heated, because chlorine fumes are likely to be produced. This is why in kitchens where bleach is used to sanitize dishes and surfaces, the solution containing bleach must be made using cold water.
Because when its too warm the muscles relax and it makes it harder to swim. It's like when you're in a spa for too long and you get sleepy. That's essentially what happens. So the pools are kept cold. The same goes for swimmers and underwater hockey and other water sports.
so the athletes can cool of in a freezing cold pool Chlorine on its own is "unstable". That means in about 24 hours, all the chlorine in the pool will outgas into the air, leaving none in the pool. Stabilizer (cyanuric acid) stabilizes the chlorine molecules, which keeps the chlorine in the pool, allowing a longer period of time to do its job of killing bacteria.
Concentration
Chlorine doesn't react with chlorine.
do do
by deeper pools i assume you mean stagnant water. Insects are most common in slower water so they can lay their eggs. For example, water from a fast river is safer to drink because it is generally cold and moves too fast.
A cod fish can live until over 20 years old.