Sword Play, Canoeing, and something else.
Sports that involve a combination of strength training and cardiovascular exercise, such as boxing, swimming, and rowing, are considered some of the best for building muscle and getting ripped.
Many sports by their nature are a demonstration of strength and involve physical contact. As long as that is controlled well with rules, there is nothing wrong with physical sports. If people are happy to play them, then they should be allowed to. If we had no physical sports, sports would not be so interesting. There is also a need for people to have some outlet for expressing their physical strength. If they are not allowed to do it in sport, they may do it in far less controlled ways, such as violence. We need all kinds of sports, for all kinds of people. So yes, physical sports should be encouraged.
figure skating, alpine skiing, skeleton
Air sports :-)
baseball, soccer, football
There are an unlimited number of projects that could involve sports. One might do a project on the effects of sports in a person's life for example.
To Get There Strength.
Sports that raise your heart rate.
There are currently no professional sports that involve scuba diving.
water sports. sports that involve water Sports in water like swimming,water volley ball.
kite flying
That depends on the country in which you live and therefore the government agencies (if any) who's bailiwick this would be. As you have not told us this in your question we can not answer you.