What is the largest country in the world?
Russia.
What is this?
Island.
What is this?
river
What is the biggest island in the world?
Greenland.
Which is wider? The river or the stream?
The river.
In which is the water saltier? In the lake or in the sea?
In the sea.
What is between the mountains?
valley
Which is bigger? Africa or North America?
Africa.
What is this?
lake
What is the widest river?
The Amazon.
What is this?
sea or ocean
Which is the biggest continent?
Asia.
Which country is the smallest?
Vatican.
What is this?
waterfall
What is drier? The field or the desert?
The desert.
What is this?
beach
What is this?
mountain
Which is higher? The mountain or the hill?
The mountain.
What is this?
Desert.
What is the biggest city in Europe?
Istambul.