Depends on how fast he runs in a sitting. If he runs slow during the 20 minutes he isn't getting much done :D.
Answer: You know that health has three dimensions physical, mental and social which are related and influence each other greatly. Physical health relates to the efficient functioning of the body and its systems, and includes physical capacity to perform tasks and physical fitness.
Explanation:
Another name for kidney stones, is (Nephrolithiasis). Nephrolithiasis is the presence of calculi within the kidney. Nephrolithiasis is also the medical term for kidney stones.
So it's A. Nephrons
Glad to help ya!! :)
A pediatrician! They specialize in taking care of young children and infants.
(Mark me brainiest!)