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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.
Human activity increases the greenhouse effect and leads to global warming.
A glacier is a large body of ice that forms from snow, and is in constant, slow motion.
A glacier is a large body of ice in constant, slow motion down a hillside.
Is the tundra region as cold and deserted as many people think?
The animation presents the largest mountains, plains, rivers, lakes and deserts of the Earth.