Considering that there are more players on a football team than a basketball team.. yes its possible that there are more injuries occurring in American football than basketball
No, generally the Duke basketball team is much more successful than their football team.
Because they score more points than the other team.
There is no limit. However no team has ever had more than 1.
To beat the opposing team by scoring more goals than they do.
Its not true that Bulgaria has more centenarians.
Why not? By the way: there's more than one country mentioned in HP: England, Scotland, Ireland, Albania, Bulgaria, French, Belarus. If you are asking why Rowling chose Bulgaria as one of the teams in the Quidditch World Cup Final in the fourth book: She was writing the Goblet of Fire in 1994. In the summer of that year there was a FIFA World Cup held in USA. The surprise of the tournament was Bulgaria. The country had given the world good athletes and individual football players, but had never been known for a strong football team as a whole. So the thing is that that year Bulgaria's football team finished 4th after losing to Italy in the semi-finals after beating teams like Germany, France, Mexico, Argentina, and etc. There are suggestions that Rowling got inspired by the great spirit and abilities of such an unknown team. That is the closest and only time Bulgaria came close to a world title in football.
The west coast nfl football team that has a population of more than 3 million are the Arazona Cardinals.
Manchester City, Real Madrid, Barcelona and some more
Swarthmore has no football team.