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.
Best Answer: Typical gross clues of chemical reactions:- 1. The colour changes 2. Physical form changes 3. Bubbles form 4 Heat is colorlessr is absorbed It suppose to be a chemical reactions because it produced heat when it's burn and causes a bigger flame.When you burn a colourless natural gas, it'll turns into yellow or blue flame depends on the temperature.he colour changes 2. Physical form changes 3. Bubbles form 4 Heat is colorlessr is absorbed It suppose to be a chemical reactions because it produced heat when it's burn and causes a bigger flame.