Question

upwelling
open ocean coastal waters
warm oceanic
waters
coastal current
surface zone
nutrient - poor
water
pycnocline
cold
upwelled
waters
nutrient - rich
water
continental
shelf
continental
slope
coastal upwelling in the northern hemisphere
explain how upwelling works according to this diagram

Explanation:

Winds push surface waters (warm, nutrient - poor) away from the coast. This creates a void. Deeper, cold, nutrient - rich waters then rise (upwell) to replace the displaced surface waters. The upwelled waters bring nutrients to the surface, which is important for marine life.

Answer:

Winds drive surface waters (warm, low - nutrient) offshore. This displacement causes deeper, cold, nutrient - rich waters to upwell. The upwelled waters replenish the surface, providing nutrients for marine ecosystems.