If you are asking about college football, I believe all fifty states have at least one college with a football team, and some have many more than one. If you are asking about professional football, there are a number of states that do not have a team at this time: among them are Maine, Mississippi, Alaska, Hawaii, Vermont, and North Dakota.
New York, Texas, Florida, California, and Pennsylvania
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
There are many football teams
No, generally the Duke basketball team is much more successful than their football team.
Because they score more points than the other team.
Cleveland Browns and the Cincinnati Bangles both reside in the classless state of OHIO
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.
Football teams are not named after states in college football. Rather, the teams represent colleges and universities and are referred to by the name of the school (for example, "Michigan" is the football team from the University of Michigan and "Florida State" is the football team from Florida State University). Most "flagship" institutions (major public universities with the name of the state in its title) sponsor football programs. The notable exceptions are Vermont and Alaska. Other than that, the other 48 states have at least one football program at an institution which has a name that includes the name of the state (and many have more than one).