In Walt Rostow's modernization model identifying the levels and stages of economic development, in what sector of the economy are most workers employed in those few countries achieving the fifth stage?
1.agriculture
2.service
3.industrial
4.extractive
5.professional

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

Which is a result of the emission from the use of fossil fuel

How has the geography of india made it difficult for its people to expand before modern technology?