Tom Sawyer

Recycling: It is a physicochemical or mechanical process that it consists of submitting to a matter or a product already used to a cycle of total or partial treatment to obtain a raw material
Olddiscarded materials

Natural resources: To those material goods and services that the nature provides without alteration on the part of the human being.
Landfills: To the land with which an area isrefilled to raise his level and to form a plane of support adapted to do a work.
Garbage: It is any material considered as waste and that it is necessary eliminate.
Segregated materials: It refersto separating, separating someone from something or a thing from other one.
Wind energy: It is the energy obtained of the wind, that is to say, the kinetic energy generated by effect of the draughts,and that is transformed into other useful forms for the human activities.
Befoul energy: is a type of fuel whose energy is derived from biological carbon fixation. Biofuels include fuels derivedfrom biomass conversion, as well as solid biomass, liquid fuels and various biogases.
Nuclear energy: It is the energy that is liberated spontaneously or artificially in the nuclear reactionsConservation: is a Bit measure of the probability of which a species continues existing in the present or in the nearby future, in dress not only of the volume of the current population, but also of thetrends that have showed throughout the time, of the existence of predadores or other threats, of the modifications foreseen in his habitat,

Paper: It is a thin leaf elaborated with pasta of vegetablefibers that are ground, whitened, diluted in water, dried and hardened later; to the cellulose flesh, normally, him substances are added as the polypropylene or the polyethylene in order to providediverse characteristics
Aluminum: The aluminum was in use in the classic antiquity in dry cleaner's shop and medicine under the form of a double salt, known as alum and that continues being used...