what are the main rules in swimming
To not drown.
W.H Williamson is credited for inventing swimming as a sport by coming up with the first swimming rule in 1804. This rule was commonly known as the lifebelt.
It isn't, Rugby and Football are the main and most popular, swimming might be popular but it isn't the main sport
Buddhists main rule is 'Not To Harm Others'
The main rule of netiquette is that no one is controlable of webs.
swimming and running
Yes they are all the same.
Swimming uses almost every muscle in your body. It does not just use one main one.
Power rule, Chain rule, Product rule and quotient rule are the main rules of finding derivatives in Urdu.