Lumber Pressure Treated With Chromated Copper Arsenate. Chromated copper arsenate (CCA) has been used extensively in this country as a wood preservative. CCA is composed of: copper, which acts as a fungicide; arsenate, a form of arsenic, which is an insecticide; and chromium, which binds the ingredients to the wood.
Devilâs Throat at Iguazu Falls in Argentina. Photo by: Luca Galuzzi, Creative Commons. Iguazu Falls, also known as Iguassu or IguaÃ§u Falls, are situated on the border of Argentina and Brazil. They touch the Parana region in Brazil and the Misione region from Argentina. The falls separate the river into upper and lower Iguassu.
Mis Buenos Aires Querido on YouTube. On the streets of Buenos Aires, Carlos Gardel's image is everywhere: the suave singer who introduced tango, a symbol of Argentina's Golden Age, to the world. His life and death are the stuff of legend.n Argentina, the tango had begun as music and dance for men looking for work during the Great Depression. But Gardel helped popularize the style as it moved from the underground dance salons to the upper classes.