history of freestyle skiing
You can burn up to 300 calories when you go freestyle swimming for an hour. You can burn more than this if you are swimming intensely.
any way you want
flutter kick, and freestyle kick
Swimming strokes that are practical in survuval situations such as freestyle and breaststroke
The main difference betwwen freestyle and back stroke in swimming is that freestyle is done on your stomach, and backstroke is done on your back. Freestyle is also a much faster stroke than back stroke.
Butterfly, backstroke, breastroke, freestyle is the order for swimming an individal medley. However, when swimming the medley relay, the order is: backstroke, breaststroke, butterfly, freestyle.
Freestyle swimming is a good example of exercise because it works various muscle groups. Other forms of swimming are also good exercise.