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