By The Associated PressCHINA MUSCLE: China's exports and imports are growing. That sent prices higher for oil as well as for industrial metals like copper, palladium and platinum. BRIGHT AND SHINY: The price of gold rose more than 1 percent. Gold prices fell last week after the Fed signaled that its bond-buying program could end sooner than thought. MIXED CROPS: Corn prices rose, soybeans were down and wheat prices were essentially flat. Prices are volatile because some traders are starting to worry about the possibility of a second straight dry season, one analyst said.