Usually it is only one.

Your best option is to ask your college recruits. It depends alot on the school and their rules that they get from the NCAA if their a division I or II school. If their smaller schools I doubt that will have money to give you two different scholarships. Unless their 2 half scholarships that cover your whole college balance. But like I suggested first, ask your college recruits and your high school counselor. It's very unlikely. Colleges usually just give you one major scholarship that gives you guidelines to maintain (such as g.p.a, academic standing, class hours, behavior, etc…) while it covers the whole balance.

It depends upon the sports.

Football and basketball at the D-I level, the so called money sports, generally play with different rules than the rest. Lots of athletes want to play two sports: if you want to play football, your scholarship must be for football. The NCAA rules bar players with non-revenue scholarships from playing for a revenue team - probably to keep big schools from circumventing the scholarship restrictions by giving football players cross country scholarships, or whatever. The traditional powers used to give 150 scholarships in the old days - the field just wasn't level for MAC and Sun Belt schools. ( Chicago State has the reverse problem: it has such financial problems that it makes the basketball players run track and play baseball - since the NCAA requires D-I schools to field 14 different sports, they save money by making the major sports athletes double up. The Mid-Con (now Summit League) basically kicked them out because they were non-competitive. )

However, in the somewhat related, non-revenue sports, it is not uncommon for athletes to have partial scholarships in each sport. I suppose the most common example is athletes who have partial scholarships for cross country, indoor track, and outdoor track. I knew some athletes on such splinter scholarships when I was a student.

Some sports have shredded scholarships to a ridiculous level. Baseball, for example, often has kids on half, even quarter scholarships, filling out the squad. They often operate with only twelve scholarships for the whole squad. If you get a full baseball only ride, you must be a heck of a player.

The reason for this is that players will often qualify for other financial aid, which will then reduce the need for the school to provide a full athletic ride. If a relatively poor kid qualifies for a state tuition grant, and a pell grant, the school might just only give him a half scholarship to cover his room and board.

But you are not going to get more than one full ride. Cross country and track are not going to each give you a full ride. It would be an NCAA violation to give a student more than one full ride from a school.