The Amazon is the longest river in the world.
The most populous city in the world is Tokyo.
Earth has 6 continents.
The Sahara is the world's largest desert.
There are 7 oceans on Earth.
The capital of Brazil is São Paulo.
Norway is the country with the highest per capita income.
The capital of Canada is Vancouver.
The capital of Poland is Warsaw.
Russia is the largest country in the world.
