There would be no protective magnetic field...

There would be no protective magnetic field, no Van Allen radiation belts, no ozone layer, no metal to make haemoglobin [in human blood], no metal to tame the reactivity of oxygen, and no oxidative metabolism.

“The intriguing and intimate relationship between life and iron, between the red colour of blood and the dying of some distant star, not only indicates the relevance of metals to biology but also the bio-centricity of the cosmos…” [76] Darkness in the Sea: God Says in the Quran: Or like the darkness in the fathomless ocean, a wave covers it from above a wave, (and) from above it is a cloud; darkness on top of each other. When he holds out his hand, he almost cannot see it.

[24:40] The verse mentions the darkness found in deep seas and oceans which increases as a function of its depth, so if one stretches out his hand, he cannot see it. The darkness in a sea reaches to its peak at about 200 meters and below. At this depth, there is almost no light penetrating from the above sky. Sunlight starts to dimmish, with each water layer absorbs it along sea depth.

The amount of light that penetrates through seawater depends upon many factors including the time of day, season, geographic location and the clarity of the water. When light passes through water, it is absorbed and scattered by water molecules and particles in the water. As water depth increases, the longer (red) wavelengths are the first to be absorbed and scattered. By about 10 m below the surface, most of the red and orange wavelengths of visible light are no longer present.

A source of artificial light must be used to view reds and oranges. For this reason, many divers carry a torch even during the day. As depth increases the scattering and absorption of shorter wavelengths (yellows and greens) becomes evident. By about 150 m depth, even in the clearest water, human eyes can only see blue light. Beyond about 800 m the human eye can detect no visible light from the surface. At these depths the only visible light is made by living organisms.

The eyes of some deep-sea fishes are 15 to 30 times more light-sensitive than human eyes. Some deep-sea fishes can detect light in depths down to 1300 m. [77] The history of deep-sea exploration begins relatively recently, mainly because advanced technology is needed to explore the depths.