Some countries choose their best athletes. Also, some good athletes practice more.
The next host city of the Olympics will be Rio de Janeiro, Brazil, The cities and countries that host the Olympics are decided well in advance.
200 countries have qualified at least one athlete in the2012 summer Olympics see related link under Participants
Gymnastics was always in Russia, it was invented there. Every olympics, Russian gymnasts compete and do well.
we should go to the Olympics because we can have fun there and learn something from the things we saw in the Olympics like if we saw some tricks on football you can use it when you are playing football as well.
well it depends on how many athletes that each country take x
Well besides training and stuff, and you go to local, regional, and national competitions and there they have scouts that ask you to join your countries national team if your good enough.
well some countries yes and some no
Asia is not a country, it is a continent. It has many countries in it. Some are well developed and some are not.
The rich and powerful have always run Canada, and most other countries in the world as well.
Mexico
well known0
well most of the country's i will metion okay: Africa Australia America Brazil (c) Denmark sorry but that's all i can mention