It depends on their height and weight, gender, age, activity level, muscle mass, etc. Their profession doesn't really matter when determining somebody's calorie intake.
An astronaut needs to drink about 3 liters of water per day while in space to stay hydrated. This amount is higher than on Earth due to the effects of microgravity on the body, which can lead to accelerated dehydration.
As much as it needs.
as much as you can and about 3 cups each day
One liter
As much as they need
If you want to lose your weight then drink atleast 14 glass of water each day.
8 glasses a day
yes
2.5 litres
you should drink 7 cups of water a day so if you were to drink water every hour you could only do it for 7 hours each day😉
Eight glasses that are eight ounces each
If you don't drink enough water each day, you risk becoming dehydrated. Warning signs of dehydration include weakness, low blood pressure, dizziness, confusion, or urine that's dark in color. So how much water should you drink? Most people need about four to six cups of water each day.