Answer:
D. the amount of resistance in lbs or kg used in workouts I think?
Infertility would be you answer
Answer:A
Reason bc second hand smoke is real and the want less people to smoke
What don't you understand?
Answer:
is a blind, neutral experiment
Explanation:
In Science, to have results in which you can trust, always need to be a comparative ( in this case the creatinine supplementation and the other powder). To be a serious experiment, need to have the same activities, duration and the participants need to "blind" to know which substance they are really taking, so they need to train as usual, and after some time the results will show if there is a significant difference.
