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Terms for subject Environment (5650 entries)
platja beach (The unconsolidated material that covers a gently sloping zone, typically with a concave profile, extending landward from the low-water line to the place where there is a definite change in material or physiographic from (such as a cliff), or to the line of permanent vegetation (usually the effective limit of the highest storm waves); a shore of body of water, formed and washed by waves or tides, usually covered by sand or gravel, and lacking a bare rocky surface)
platí platinum (A ductile malleable silvery-white metallic element very resistant to heat and chemicals. It occurs free and in association with other platinum metals, especially in osmiridium; used in jewellery, laboratory apparatus, electrical contacts, dentistry, electroplating, and as a catalyst)
plaça square (An open area in a town, sometimes including the surrounding buildings)
plenamar high tide water (The level of water when the tide is at its highest level)
plet litigation (A judicial contest, a judicial controversy, a suit at law)
plom lead (A heavy toxic bluish-white metallic element that is highly malleable; occurs principally as galena and is used in alloys, accumulators, cable sheaths, paints, and as a radiation shield, Pb)
pluja rain (Precipitation in the form of liquid water drops with diameters greater than 0.5 millimeter)
pluja àcida acid rain (Rain having a pH less than 5.6. The acidity results from chemical reactions occurring when water, sulphur dioxide, and nitrogen oxides, generally released by industrial processes, are chemically transformed into sulphuric and nitric acids)
plutoni plutonium (A highly toxic metallic transuranic element. It occurs in trace amounts in uranium ores and is produced in a nuclear reactor by neutron bombardment of uranium-238. The most stable and important isotope, plutonium-239, readily undergoes fission and is used as a reactor fuel in nuclear power stations and in nuclear weapons)
plàncton plankton (Small organisms (animals, plants, or microbes) passively floating in water)
plàstic plastic (A polymeric material (usually organic) of large molecular weight which can be shaped by flow; usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material); examples are polyvinyl chloride, polyethylene, and urea-formaldehyde)
plàstic reciclable recyclable plastic (Plastic waste that can be transformed into new products)
pneumàtic tyre (A rubber ring placed over the rim of a wheel of a road vehicle to provide traction and reduce road shocks)
pneumàtic de cotxe car tyre (A rubber ring placed over the rim of a wheel of a road vehicle to provide traction and reduce road shocks, especially a hollow inflated ring consisting of a reinforced outer casing enclosing an inner tube)
pneumàtic usat scrap tyre (Recyclable material from discarded motor vehicle tyres)
població population (A group of organisms of one species, occupying a defined area; ecological)
població activa active population (The number of people available and eligible for employment within a given enterprise, region or nation)
població activa agrària working population engaged in agriculture (The number of a particular region or nation's working population gainfully employed or otherwise occupied with the production of crops, livestock or poultry)
població animal animal population (A group of animals inhabiting a given area)
població humana human population (Group of individuals having common characteristics)

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