Photic Zone of the open ocean is the shallowest part of the ocean where there is enough light to support plant life.
Therefore, the correct answer is Option A.
What is Photic Zone?
- Photic zone forms the top layer found near the surface of the ocean.
- It is also called the sunlight layer as it allows sunlight to penetrate which allows the organisms present in this layer to photosynthesize.
- In oceans, the photic zone may be as deep as 200 meters.
- Because of the availability of sunlight, many life forms are present in this zone like turtles, sharks, jellyfish, corals, phytoplanktons, zooplanktons etc.
- Below the photic zone is present the Disphotic zone or twilight layer where only small amount of light penetrates.
- Further below is the darkness or aphotic zone where there is no light. This forms about 90% of the ocean.
Learn more about the photic zone here:
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