Earth has 6 continents.

The most populous city in the world is Tokyo.

The Sahara is the world's largest desert.

The Amazon is the longest river in the world.

There are 7 oceans on Earth.

The capital of Canada is Vancouver.

The capital of Poland is Warsaw.

The capital of Brazil is São Paulo.

Russia is the largest country in the world.

Norway is the country with the highest per capita income.