Reliefs of Ocean Basins


  1. The concept of sea floor spreading was first propounded by









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    The concept of sea floor spreading was first propounded by Harry Hess. Harry Hammond Hess was a geologist and United States Navy officer in World War II. Considered one of the "founding fathers" of the unifying theory of plate tectonics, Rear Admiral Harry Hammond Hess was born on May 24, 1906 in New York City.

    Correct Option: B

    The concept of sea floor spreading was first propounded by Harry Hess. Harry Hammond Hess was a geologist and United States Navy officer in World War II. Considered one of the "founding fathers" of the unifying theory of plate tectonics, Rear Admiral Harry Hammond Hess was born on May 24, 1906 in New York City.


  1. Among oceanic trenches the deepest trench is









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    Mariana trench is the deepest trench located in the pacific ocean near Japan. The Mariana Trench or Marianas Trench is the deepest part (11 km) of the world's oceans. It is located in the western Pacific Ocean, to the east of the Mariana Islands.

    Correct Option: C

    Mariana trench is the deepest trench located in the pacific ocean near Japan. The Mariana Trench or Marianas Trench is the deepest part (11 km) of the world's oceans. It is located in the western Pacific Ocean, to the east of the Mariana Islands.