After tectonic forces create a rift valley that separate a plate into two land masses the valley filled with water and become the

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

2/6 of be by to 2/6 is to 24/72 ?

East asia is considered a less developed nation. true or false