martes, 13 de febrero de 2018

                           
               THE POLES ARE IN DANGER   



Year after year the level of water increase because we are destroying the ozone layer. We need to recycle and reuse.

At our school we have the "pinar sostenible". With this we recycle and clean the enviroment we teach other people to do this.
I think if the poles melt, the cities on the coast are in danger because the level of water is going to raise.

En el 1545  Girolamo Cardano  publica  Ars Magna , en el que presenta la solución general de la ecuación cúbica y la de la cuártica. Dicha ...