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