Why are areas of high primary and secondary production associated with upwelling zones?
Answer: These are areas where cold, nutrient-rich waters are bought up from the depths and essentially fertilize the surface waters.
Answer: These are areas where cold, nutrient-rich waters are bought up from the depths and essentially fertilize the surface waters.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.