POLLUTION - OZONE LAYER

One of the biggest problems caused by pollution is the destruction of the ozone layer

First clip      →   Martínez Lopéz Martín Enrique

Second clip →   Lopéz Macías Carlos Yael

Third clip     →   Bueno Sarabia Joel Iván

Fourth clip   →   Armenta Garcia Claudio Rene

Last clip      →   Cornejo Burjos Luis Carlos