2. Upwelling is the upward replacement of ________, nutrient-poor, surface water by ________, nutrient-rich, deep water.
A. cooler, warmer
B. warmer, cooler
C. saltier, warmer
D. cooler, saltier
Cool, deep ocean water upwells and replaces the warmer surface waters allowing for more primary productivity. This is seen largely on the West Coast of Vancouver Island and off the coast of Ecuador.
