B. Lactic acid build up creates pains and aches on the muscles
body fluids, always wear PPE.
Hi Ace22704,
Answer - natural observation
I think this experimental method is a better option because its in a natural environment where the kids dont know whats happening unlike the suveys where you ask them questions which is probably a bad idea because they might feel scared and just change their minds.
In through nose out through mouth
Answer:
im pretty sure it is diets
Explanation: