Because it has the required chemical properties to function in a battery.
nope.
batteries
Some batteries do contain mercury but only specialised ones.
Because mercury is widely beleived to be extremely poisonous and dangerous to the environment these days, and if batteries leaked, it would be too dangerous so governments have banned their use.
Batteries can contain some toxic metals as lead, cadmium, mercury, etc.
it is not mercury it is asid try not to let them leak it is bad if they leak.
Mercury is in some thremometers, barometers, light bulbs, batteries, paints and pesticides, among other items.
in thermometers, barometers, fluorescent lamps and batteries.
because it has mercury that can harm living organisms
You can find it in fluorescent lights, batteries and some thermometers.
Mercury can be used in thermometers, When the heat rises, the mercury- seeing as it is a metal- expands and rises up the thermometer, henceforth telling you the temperature, Mercury can also be used in Batteries.
Mercury itself is very poisonous. It collects in meat and tissue, as well, so mercury can carry over from anything that has consumed it. Fish are known for leading to mercury poisoning.