Discover the mysterious depths of the Earth’s vast reservoirs and the dangerous creatures that lurk there
Pitch Darkness
Oceans are very deep, and the light streaming from the surface never gets far. The ocean floor is often pitch dark, and marine life also doesn’t thrive at such depths. Light only reaches about 200-meter depths below the water surface, and this region is known as the photic zone.
Thankfully, the light that floods through is enough to support marine flora, hence why sea animals crowd around the space. A 200-meter depth sounds quite deep but to put it into perspective; most oceans drop down to about 2,300 meters (1.5 miles) below the Earth’s surface. The Mariana Trench, the greatest known ocean abysm, is 11,000 meters (7 miles) deep.
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