Which of the following countries is not expected to account for half of the world's population increase during the next fifty years?

a. pakistan

b. nigeria

c. the united states

d. australia

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

The larges lakes in the world are found in: asia europe north america south america

How many inches of snow did any of you guys get last night?