1. Make sure the sport they are playing, that the item can't cause a real injury
2. Make sure the surrounding area is acceptable so like no slippery floor, or marble floor
3. Make sure every kid is doing the steps correctly or game, if not, then teach them and separate from kids doing good.
( I don't know if you meant ruled steps, so I made some, this is just what I think, hope it's what you want. )
The answer is decay. Decay is the principal natural means of recycling solid waste.
Answer:
Often by the people that get sick you ask them who they have been around and have video of the people slowly you find them and often a doctor will have some type of evidence that this person had the disease's
Explanation: