the main sport in Croatia is soccer and second main sport is rukomet and rukomet is handball witch Americain don't have
Your question is too ambiguous. Major what?
In most shops that sell sport shoes.
The Sava River.
The most people are catholic.
Croatia of course, no doubt about that. It depends on how do you define stronger. If it's military power then Serbia is stronger. If it's sport then Serbia is stronger.
Zagreb (the capital) and Split
I believe soccer is probably the major sport in Zambia
No, you do not unless your major is a sport. If a college student's major is a sport then, Yes, you will have to take a class in that sport.
No. It's a sport popular in Britain. Most of Croatians doesn't understand it at all.