Sedimentary rock

Rivers play an important role in shaping the Earth's surface: they cause erosion as well...

The last Ice Age ended about 13 thousand years ago.

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

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

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

The decisive factor that determines the climate zones of mountains is the altitude above sea level.

Wind, as an external force, plays an important role in shaping deserts.

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