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  2. Water distribution on Earth - Wikipedia

    en.wikipedia.org/wiki/Water_distribution_on_Earth

    The lower mantle of inner earth may hold as much as 5 times more water than all surface water combined (all oceans, all lakes, all rivers). [19] The amount of water stored in the Earth's interior may equal or exceed that in all of the surface oceans. [20] Some researchers proposed the total mantle water budget may amount to tens of ocean masses ...

  3. Ocean surface ecosystem - Wikipedia

    en.wikipedia.org/wiki/Ocean_surface_ecosystem

    Many eels, both reef, benthic, and deep-sea, nocturnally migrate to the surface layer as larvae. [64] But while the ocean's surface may seem like an odd habitat for larval deep-sea fish, they are far from the most unusual. Diverse fish that migrate into freshwater as adults (either as a habitat or spawning ground) rely on the neuston when young.

  4. List of extrasolar candidates for liquid water - Wikipedia

    en.wikipedia.org/wiki/List_of_extrasolar...

    The goal of current searches is to find Earth-sized planets in the habitable zone of their planetary systems (also called the Goldilocks zone). [4] Planets with oceans could include Earth-sized moons of giant planets, though it remains speculative whether such 'moons' really exist. The Kepler telescope might be sensitive enough to detect them. [5]

  5. Mesopelagic zone - Wikipedia

    en.wikipedia.org/wiki/Mesopelagic_zone

    Increased ocean stratification reduces the introduction of nutrients from the deep ocean into the euphotic zone resulting in decreases in both net primary production and sinking particulate matter. [3] Additional research suggests shifts in the geographical range of many species could also occur with warming, with many of them shifting poleward ...

  6. Biosphere - Wikipedia

    en.wikipedia.org/wiki/Biosphere

    Life forms live in every part of the Earth's biosphere, including soil, hot springs, inside rocks at least 19 km (12 mi) deep underground, and at least 64 km (40 mi) high in the atmosphere. [26] [27] [28] Marine life under many forms has been found in the deepest reaches of the world ocean while much of the deep sea remains to be explored. [29]

  7. Deep biosphere - Wikipedia

    en.wikipedia.org/wiki/Deep_biosphere

    Environments in which subsurface life has been found [1]. The deep biosphere is the part of the biosphere that resides below the first few meters of the ocean's surface. It extends 10 kilometers below the continental surface and 21 kilometers below the sea surface, at temperatures that may reach beyond 120 °C (248 °F) [2] which is comparable to the maximum temperature where a metabolically ...

  8. Oceanic zone - Wikipedia

    en.wikipedia.org/wiki/Oceanic_zone

    The oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf (e.g. the neritic zone), but operationally is often referred to as beginning where the water depths drop to below 200 metres (660 ft), seaward from the coast into the open ocean with its pelagic zone.

  9. Hadal zone - Wikipedia

    en.wikipedia.org/wiki/Hadal_zone

    The hadal zone, also known as the hadopelagic zone, is the deepest region of the ocean, lying within oceanic trenches. The hadal zone ranges from around 6 to 11 km (3.7 to 6.8 mi; 20,000 to 36,000 ft) below sea level , and exists in long, narrow, topographic V-shaped depressions.