Reliable is not one of the Three R's.
I would say a because he ran too much but that would be just me I think he hurt his knee from running too much more exercise but probably just aggravate his condition I could be wrong but this is what I think
Answer:
Respiration is the chemical phenomenon in which cells obtain energy by combininatin oxygen and glucose.
Answer:
Lung cancer, Addiction, Many Health Complications.
Explanation:
