In Canadian football, while only 12* players are playing on the field at once, teams need more than just 12* players. They must have an offensive and defensive team. Most highâ¦ school football teams have 1st, 2nd, and 3rd string players, so thirty to forty players is a reasonable number.
Gastroenteritis may result from ingesting chemical toxins (see Chemical Food Poisoning). These toxins are usually produced by a plant, such as poisonous mushrooms, or by certain kinds of exotic seafood and thus are not the product of an infection.
Causes of GAS. List of causes of GAS. Air swallowing (aerophagia) - this causes more belching than flatulence; can occur from eating too fast, chewing gum, smoking, ill-fitted dentures, or other reasons. Fundoplication surgery - a treatment for GERD that may cause gas as a side effect.