Our earth is a living planet, where the 'life' and the planet evolve together. The history of Earth began before 4.6 billion years. In this long and often unknown story a large number of geological phenomena and processes has been recorded, due either to internal forces (ie forces acting on the Earth's interior) such as the orogenesis, the volcanic activity and earthquakes, or to external forces (ie forces operating outside the Earth), such as weathering and erosion.

When the Earth was at first formed, its surface had wet-magmatic form and the atmosphere was heavy and poisonous. This initial air was dispersed in space due to solar radiation. The first crust (the first rocks) was formed in the beginning of the gradual drop in temperature on the surface of the Earth before 3.8 billion years from now.

Then a new atmosphere was created of vapors and gases of the first eruptions. In a further drop of temperature, the vapors were converted into water and created the oceans. The first form of life (organisms capable of photosynthesis) in the world appeared before 3.2 billion years or so.

The primitive animal forms make their appearance before 1.5 billion years and the first plants on land occurred before 400 million years. These plants, indeed, attributed to air the oxygen, which is necessary for all living organisms. Before 200 million years early mammals occurred, and before 150 million years early birds made their appearance.

All these geological phenomena and the tvarious processes continually change the surface of the Earth. The continuous changes during the long evolution of the Earth have been recorded in our environment and materials which comprise it. Various geological events, conditions and procedures reflected in rocks, minerals, fossils, metals, landforms and structures.

If we look around, we see immediately that great variety of mountains, canyons, fissures, caves and rivers. All these together form the geodiversity.The variety of rocks, formations, landscapes and processes occurring on the planet are the geodiversity. Within this long history of Earth, the human presence is very recent and represents only 1 / 500 of her age. However, human activity and progress is always closely linked with geoenvironment and geo-sciences.

Moreover, historical periods and different phases of human civilization are characterized and dated according to the geo-materials used, this time, the man: the Paleolithic and Neolithic times, in times of copper and iron, we can add eras of coal, oil, uranium, etc. In the modern world, since man has begun, unfortunately, wasteful use of natural resources and geoenvironment, it is necessary to ensure their protection and preservation..