It is on the basis of this recommendation and in the principles already presented here, that visits and excursions must be carried through the similar Areas of Ambient Protection or entities, as pupils of the infantile education to superior education, as main subject or as part of projects interdisciplinares. Visits to the lixo, horto botanical, the springs of a river the museums, to the station of water treatment, to an ecologically correct residence; tracks in conserved bushes and stroll for the city; excursions the state and national parks are examples of activities that can be developed. These moments of visitation and experience must be folloied of a previous work of collection, presentation and quarrel of information, and be permeados by activities involving the different contents. 2.OS NATURAL RESOURCES AND the ENVIRONMENT Where WE LIVE Nothing that we make use in the Nature is indestructible or inexaurvel, nor the ground that we use nor the water that we drink, nor air that we breathe; all suffer to constants threats from severe contaminations that can give end this precious ' ' resources naturais' ' , and the assignment given to the elements of the Nature, in reference to the beings livings creature, existing basically, three categories: natural resources you renewed (animal and vegetal), natural resources not-you renewed (ground, minerals, fsseis,) and resources free (air, water, solar light, among others more abundant resources). We consider ' ' livres' ' because these resources, exactly threatened for the galopante pollution, always existed in abundance in the Planet. 3. Air You already stopped to think about the quality of the air that breathes, and that its deterioration will be able to mean in terms of life possibility? The increasing pollution of air has caused, mainly, in a considerable increase of the respiratory problems in the population of many communities of a industrial centers and its roundnesses.