Answer:
In general, children and teens need about 6 to 8 cups of water a day. They should also eat lots of fresh fruits and veggies, which are full of water. During play or exercise, a good goal is to drink a half cup to 2 cups of water every 15 to 20 minutes.
Explanation:
A quantity that does not equal 0, a real nonzero number must be positive or negative and a complex nonzero can have real or imaginary parts
