Sedimentary rock

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

The atmosphere surrounds us everywhere on this planet. We take its presence so much for granted...

It is characterised by dry, hot summers and mild winters.

On a geological time scale lakes are short-lived.

Cyclones are large areas of circulating air with clouds and precipitation being formed in its...

One third of the continents is covered with desert. Today, desertification is a growing problem.

This video presents the different stages of coal formation.

The surface of the Earth has been formed into its present state both by external and internal...