(hope this helps)
middle-distance running, in athletics (track and field), races that range in distance from 800 metres (roughly one-half mile) to 3,000 metres (almost 2 miles).
It's the last answer, number 4.
You have to breath normally during a stretch.
Yes. I have had one :). Called a canker sore
Answer:
Bile pigment. (bilirubin)
Explanation: