Answer:
D.
Explanation:
The respiratory system is responsible for breathing—that includes oxygen.
Answer:
A clavicle fracture is a break in the collarbone. You have two clavicles, each connecting a shoulder to the upper chest. Broken collarbones are common, often happening from a fall, sports injury or car accident. Although a broken clavicle is painful, most people don't need surgery.
Explanation:
lethal dosage of chocolate for a human being is about 22lb (or 40 bars of Dairy Milk).
It depends on what causing it. the only thing I can say is to drink plenty of fluids but I would recommend to go see a doctor, if you are unsure or worried.
