El Niño

A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.

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Formation of stratovolcanoes

Stratovolcanoes consist of layers of volcanic ash, debris and lava.


The rise and drop of sea levels caused by the gravitational force of the Moon.

From the Sahara to Amazonia

A szaharai porral érkező tápanyagok nélkülözhetetlenek az Amazonas növényvilága számára.

The World of the seas

Seas and oceans cover almost three-quarters of the Earth’s surface. 97.5% of the total...


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

The Formation of the Atacama

Az Atacama Földünk legszárazabb és legmagasabban fekvő sivatagai közé tartozik.

Volcanic activity

The area surrounding an inactive or extinct volcano is not necessarily calm. Let’s see the...

Underground waters

Groundwater and aquifers are types of underground waters.

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