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.
Cordoba. Holding the distinction of being the second largest of Argentinaâs cities, at an approx pop. of around 1.46 million, it has an eclectic mix of the historic and the modern. From its foundation in 1573, Cordoba has been a centre of learning.