Natural gas and petroleum

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

Байланысты экстралар

The permafrost

The boundary of the permanently frozen region is retracting due to...

Eroded fault-block mountains

We can come across the remains of the Variscan and Caledonian...

Weather fronts

When masses of cold and warm air meet, weather fronts develop.

The River System of the Amazon

A video on the Amazon river and its drainage basin.

Weather and climate

Climate is the typical weather of a certain region that changes...

El Niño

The El Niño phenomenon has a great effect on the Earth's climate.

Where all water disappears - The Desert

Deserts cover nearly one-seventh of the Earth's land surface.

Wind at the beach

Sea and land breeze form because of the differing warming of land...

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