Ashoka attempted to spread buddhism by sending missionaries to

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

Topographic maps are used to measure a-composition b-movement c-elevation d-texture

The position on the earth in which a place can be found