The African savannah

The largest contiguous savannah in the world is in Africa. It covers about one-third of the continent.

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Mediterranean climate

It is characterized by dry, hot summers and mild winters.


It is a sedimentary rock made up of loosely structured, rough grains of rock.


The dissolution of limestone results in the development of karst formations.

Greenhouse effect

Human activity increases the greenhouse effect and leads to global warming.

Glacier (basic)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

The work of glaciers

A glacier is a large body of ice in constant, slow motion down a hillside.

The Tundra: a green-edged icy wasteland

Is the tundra region as cold and deserted as many people think?

Topography of the Earth

The animation presents the largest mountains, plains, rivers, lakes and deserts of the Earth.

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