Earth has 6 continents.

The capital of Poland is Warsaw.

There are 7 oceans on Earth.

The capital of Brazil is São Paulo.

The Amazon is the longest river in the world.

The Sahara is the world's largest desert.

Russia is the largest country in the world.

Norway is the country with the highest per capita income.

The most populous city in the world is Tokyo.

The capital of Canada is Vancouver.