This answer depends on the environment. If, for example, you are talking about in a kitchen in a maintained household, the water will be good for probably a few days. After that point, there will be so much dust in the cup that you'd probably just want to get a new glass of water. But out in the woods, a cup of water would probably last a few hours unattended. Insects and such will get into the water and may possibly contaminate it. In a snowy or very cold environment, you could probably leave it out for a day, since most insects won't be about.
Um...like forever! water doesn't go bad. unless it's contained in a water bottle for a really long time in hot temperature.
"still remains" by stone temple pilots. it goes "take a bath, I'll drink the water that you leave" great song .
Liquid soap:The water turns soapy and if you drink it, you would probably get sick and it would taste gross. Non-liquid Hand soap:The water would still get soapy, but not as bad as liquid soap (unless if you leave it in the water for a long time) It still wouldn't be the best to drink still.
water
Only if it was sitting in the refrigerator.
There is a myth that if we keep a solution of milk and water to drink for swans, they drink only milk and leave the water seperately.
All animals need water. Leave a dish of water for them to drink.
That depends on whether it has taken a pee lately.
well they make a substance of water and suger and the the boil and and leave it to cool and then its a warm drink.
they are not if they had fur they can drink water but they are not scared. YOU SHOULD KNOW. ^ I dont understand still ._.
Sheep actually prefer to drink from running water rather than from still water . Running water is generally much healthier and less poluted than stagnant , still water .
Elephants drink a lot of water. They can suck up around 15 litres of water in their trunk in one go. During hot summers they can drink around 100 litres or more water in one sitting. They usually stay close to water sources like lakes and rivers and drink once or twice a day.
Years.