A player who is sent off: 1  before submission of the team list can not be named on the team list in any capacity. 2  after being named on the team list and before kick-off may be replaced by a named substitute, who can not be replaced; the number of substitutions the team can make is not reduced. 3  after the kick-off can not be replaced.
Corrosion of steel is strongly affected by the amount of oxygen in the water and the temperature of the water. The effects of oxygen and temperature on low-carbon steel pipes with water flow are indicated in the diagram below: 1 mm = 0.03937 in. T(oF) = [T(oC)](9/5) + 32.
Oxygen present in the air when dissolves in water it gets separated from the other oxygen and moves on its own way. Hence does not remain in combined state. Now iron can react with oxygen in its singular state. So we can say that metal gets rusted only when oxygen, moisture, and iron react with each other. The brown coating which is hydrated ferric oxide and commonly known as rust.