1.) the qing dynasty produces and exchanged items such as chinese pottery and with english colonists during the 1800’s in order to obtain heavily demanded 2.) why did conflict occur between the qing emperors and europeans over trade? 3.) the people’s republic of china came into existence when 4.) which best describes the relationship between the soviet union and china regarding their stance on ideological beliefs?

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 is the general rule about surface currents? cold water flows along the ocean floor towards the equator. the east coasts of continents have cold surface currents, and the west coasts of continents have warm surface currents. seasonal and constant offshore winds create significant upwelling along the west coasts of south and north america and africa. the west coasts of continents have cold surface currents, and the east coasts of continents have warm surface currents.

What is the approximate chemical composition of the solar nebula?