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.
Map. Argentina, meaning land of silver, is a rich and vast landâsecond largest (after Brazil) in South America and eighth largest in the world. Its heartland is a broad grassy plain known as the Pampas (pronounced PAHM-pahs).Here Argentina's gaucho, like the U.S. cowboy, has galloped into the country's folklore.The Spanish first arrived around 1516, and Argentina gained independence in 1816.ap. Argentina, meaning land of silver, is a rich and vast landâsecond largest (after Brazil) in South America and eighth largest in the world. Its heartland is a broad grassy plain known as the Pampas (pronounced PAHM-pahs).