Natural gas and petroleum

Natural gas and petroleum are among the most important sources of energy and raw materials today.

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Nitrogen cycle

Atmospherical nitrogen is bound by bacteria and used by living organisms in the form of...

Waterfall

Waterfalls form where the river flows over a steep precipice in its course.

Taiga climate

Among the climate zones with the greatest extremes, the taiga only formed in the Northern...

Where all water disappears The Desert

Földünk felszínének egyhetedét elfoglaló sivatagok kialakulása, éghajlata, felszínformálása.

Geyser

A geyser is a spring characterised by intermittent discharge of water and steam.

Folding (basic)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

How do seas shape the Earth's surface?

Seawater, as an external force, plays an important role in shaping coastlines.

How lakes disappear

On a geological time scale lakes are short-lived.

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