4,5 and 6
Helps!!
15

number four is true

number 5 is i honestly think is also true

number 6 is is false

number 15 is you didnt show me number 15

Explanation:

the maintenance of fluid balance during exercise. author information: fluid supplementation is necessary for exercise in which fluid losses must be offset by intake to avoid the negative effects of hypohydration on health and performance.

all the above is what i would say