The lascaux cave system has around how many cave paintings?

The Lascaux cave system has around 2000 paintings.

Explanation:

The Lascaux cave system has around 2000 paintings. It consists of a complex system of caves from the Paleolithic periods with paintings of animals, humans and abstract signs. It is located near the village of Montignac, in southwestern France and was discovered in the year 1940 by teenagers who were in the area. They were open to public for some time but the deterioration of the paintings led to the decision of closing de caves to preserve them, since they are of great historical and human value.

option c (nickel) is not found in earth's crust. the earth's crust basically contains eight (8) elements namely: oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium (listed in order of abundance).