What is a referee's job?

A referee is an official, in a variety of sports and competition, responsible for enforcing the rules of the sport, including sportsmanship decisions suc...

What is the pH of milk?

Cow's milk Milk — pasteurized, canned, or dry — is an acid-forming food. Its pH level is below neutral at about 6.7 to 6.9. This is because it conta...