what is the name of the deepest location in the worlds ocean
Mariana Trench The Mariana Trench or Marianas Trench,[1] located in the western Pacific Ocean approximately 200 kilometres (124 mi) east of the Mariana Islands, is the deepest point in the world's oceans. It is a crescent-shaped trough in the Earth's crust averaging about 2,550 km (1,580 mi) long and 69 km (43 mi) wide. The maximum-known depth is 10,994 metres (36,070 ft) (± 40 metres [130 ft]) at the southern end of a small slot-shaped valley in its floor known as the Challenger Deep.[2] However, some, unrepeated, measurements place the deepest portion at 11,034 metres (36,201 ft).[3] For comparison: if Mount Everest were dropped into the trench at this point, its peak would still be over 2 kilometres (1.2 mi) underwater.[a]
Abyssal zone The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. "Abyss" derives from the Greek word ἄβυσσος, meaning bottomless. At depths of 4,000 to 6,000 metres (13,000 to 20,000 ft), this zone remains in perpetual darkness. These regions are also characterized by continuous cold and lack of nutrients.The abyssal zone has temperatures around 2 to 3 °C (36 to 37 °F) through the large majority of its mass.[1] It is the deeper part of the midnight zone which starts in the bathypelagic waters above.[1][2] Its permanent inhabitants (for example, Riftia pachyptila, (the giant tube worm)) found near hydrothermal vents in the Pacific Ocean and the giant squid are able to withstand the immense pressures of the ocean depths, up to 76 megapascals (11,000 psi; 750 atm).[2]