Strong swimmers do not need to restrict themselves to swimming in areas patrolled by lifeguards.

a. true
b. false

False.

Explanation:

The statement is False.

Strong swimmers should restrict themselves to swimming in the area patrolled by the lifeguards.                  

Because however good you swim you do not know the uncertainty of the area.                    

So, it is your moral duty to follow all the rules and regulations of the swimming because following rules can save your life if you are in any trouble.  

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.