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