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.
Mustard gas, or sulfur mustard (Cl-CH 2 CH 2) 2 S, is a chemical agent that causes severe burning of the skin, eyes and respiratory tract.It can be absorbed into the body through inhalation, ingestion or by coming into contact with the skin or eyes.nlike chemical nerve agents such as organophosphates or sarin gas, which immediately incapacitate victims, mustard gas victims typically don't exhibit symptoms of poisoning until 12 to 24 hours after exposure. However, higher concentrations of the gas can cause symptoms to develop within one to two hours.