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: Yes
Explanation:
If a edible object enters your body, the stomach breaks down the food with enzymes. While the food is going down your digestion system, your intestents makes that edible object smaller
:) Hope it helps
Answer:
Qualitative research im pretty sure
Explanation:
The answer is calories really sorry if it is wrong