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Which feature of the sea floor is responsible for the deepest parts of the ocean?
The deepest parts of the ocean are found in trenches—at more than 35,000 feet (nearly 11,000 meters), Challenger Deep is a part of the Mariana Trench, where the Pacific Plate is subducting beneath the Philippine Plate.
What is the deep ocean floor called?
abyssal plain
All floors of the ocean are known as ‘seabeds’. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain.
What are the features of the ocean floor?
Features of the ocean floor include the continental shelf and slope, abyssal plain, trenches, seamounts, and the mid-ocean ridge. The ocean floor is rich in resources. Living things on the ocean floor are used for food or medicines.
What does the deep ocean basin consist of?
Deep-ocean basins cover the greatest portion of the Earth’s surface. Geographic features associated with deep-ocean basins include trenches, abyssal plains, ocean ridges and rises, and submarine mountainous regions.
What is the deepest and darkest area of the ocean?
The area of the ocean that extends from the low-tide line out to the edge of the continental shelf. Open-ocean zone The deepest, darkest area of the ocean beyond the edge of the continental shelf.
What is it like in the deepest part of the ocean?
The Challenger Deep in the Mariana Trench is the deepest known point in Earth’s oceans. In 2010 the United States Center for Coastal & Ocean Mapping measured the depth of the Challenger Deep at 10,994 meters (36,070 feet) below sea level with an estimated vertical accuracy of ± 40 meters.
How cold is it in the deepest part of the ocean?
The deepest point is the Mariana Trench , being about 11,000 metres (36,200 feet) deep. The deep ocean is characterized by cold temperatures, high pressure, and complete darkness. Some very unusual organisms live in this part of the ocean.
Why are deep trenches found on the ocean floor?
Older sections of the sea floor have deeper trenches, which happens because heavier rock tends to sink over time . The fact that these deep-ocean trenches existed at all remained a secret until well into the 20th century. That’s because there were no vessels that could explore those regions.