You swim much faster. The 1650 is more than 3 times the length of the 500. You must pace yourself more during the mile swim.
Freestyle in dance is to dance while making up the steps on the spot with no previously choreographed steps. Styles of dance that often incorporate freestyle dance include breakdancing and krumping....
improve your balance a lot and strong and faster
freestyle means showing what you can do like what you created yourself like if you were skate boarding you could do a flip
Very good