Final answer:
The region with sufficient light for photosynthesis and extends down to 200 m is called the euphotic zone. It is typically found in the top 100-200 meters of the ocean.
Step-by-step explanation:
The region with sufficient light for photosynthesis and extends down to 200 m is called the euphotic zone. This zone is the upper layer of the ocean where sunlight can penetrate and support photosynthetic organisms. It is typically found in the top 100-200 meters of the ocean.
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