Nature & Environment

Deepest Point of The Ocean

                                 Geographical Fact

          Mariana TrenchDeepest point of the  Ocean

    As we know the surface of the earth is not even and it is varies from place to place over the globe. As like the surface land forms we have a dynamic land feature found inside the ocean which refers to ocean relief feature or ocean land form i.e. continental shelf, Continental slope, Deep sea Plain & Ocean Deep. Ocean deeps are the deepest part of the Ocean. The MARIANA TRENCH is the deepest part of the ocean which lies in the western pacific coast of Philippines. British ship H.M.S. Challenger as part of the first global oceanographic cruise discover the depth of Mariana trench in 1875.The DEPTH of Mariana trench is about 11000 meter(11 km) which is the deepest point and also known as Challenger deep which names given  after its discovery by Challenger.

According to National Geography majority of the Mariana Trench is now a U.S. protected zone as part of the Marianas Trench Marine National Monument, established by President George W. Bush in 2009. Permits for research in the monument, including in the SIRENA DEEP, have been secured from the U.S. Fish and Wildlife Service. Permits for research in the Challenger Deep have been secured from the FEDERATED STATES OF MICRONESIA. Because of its extreme depth, the Mariana Trench is cloaked in perpetual darkness and the temperature is just a few degrees above freezing.

Water Pressure increases with increase in depth   & pressure in the trench is nearly Eight tons per square inch (1,000 times greater than at sea level). The pressure is so high that it will crush nearly any creature (or man made object), unless that animal or vessel is built specifically to withstand those extremes. This particular area of the sea, then, is more than a little inhospitable. But these expanses are not lifeless.

This trench is so deep that if we place the highest mountain in the world i. e Mount Everest in it, Even this shall have a few kilometers of water above its pick.

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