Once you go about 200 meters (656 feet) down into the ocean, you enter what scientists call the twilight zone. It is a huge layer of the ocean where sunlight is very weak. There is still a little light, but not enough for plants to grow, so photosynthesis stops here. This zone stretches from 200 to 1,000 meters deep, and it feels more like dusk than day. The deepest a human has ever dived is about 332 meters (1,090 feet). That is still only a small part of this dim, shadowy world. Go deeper than
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Once you go about 200 meters (656 feet) down into the ocean, you enter what scientists call the twilight zone. It is a huge layer of the ocean where sunlight is very weak. There is still a little light, but not enough for plants to grow, so photosynthesis stops here. This zone stretches from 200 to 1,000 meters deep, and it feels more like dusk than day. The deepest a human has ever dived is about 332 meters (1,090 feet). That is still only a small part of this dim, shadowy world. Go deeper than
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