The , or interior plateau, is an area that is subject to periods of drought. sertão
escarpment
ecotourism
favelas
gasohol

Gold is not now being extracted from seawater. why not? a. it would be too disruptive to marine life to develop any marine mineral resources b. there is no gold in seawater c. we don't know how to extract minerals from seawater d. it would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals

What causes the cyclical changes in the appearance of the moon?

One of the main reasons the united states occupied japan after world war ii was that