loss of thermal stability high nutrient concentration consistent surface-current flow rate increased availability of dissolved oxygen
I gave my students this multiple choice question: Which characteristic of a cold-water upwelling near the coast of Northern California results in a large concentration of marine organisms?

Only one answer is correct among these 4 choices:
- loss of thermal stability
- high nutrient concentration
- consistent surface-current flow rate
- increased availability of dissolved oxygen

Could you tell me which one is correct?

high nutrient concentration