What does marianas trench mean

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There are obviously specific signs for many words available in sign language that are more appropriate for daily usage. Browse Definitions. To help students understand this distance in terms they recognize, have them convert the nautical miles to standard miles by multiplying nautical miles by 1. Point out that Guam is a territory of the U.

Have students identify how researchers can access the Trench. Ask students to share their ideas about how researchers might access an area this deep. Ask students to identify the challenges of exploring the deepest location on Earth. Scientists use a variety of technologies to overcome the challenges of deep-sea exploration and explore the Trench. A country has the right to explore and exploit the living and nonliving things in its EEZ.

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In , film director and deep-sea explorer James Cameron descended to the bottom of Challenger Deep, briefly reaching 35, feet 10, m during the expedition. But he could have gone a little deeper. A high-resolution seafloor mapping survey published in by researchers from the University of New Hampshire said the Challenger Deep bottoms out at 36, feet 10, m.

The ocean's second-deepest place is also in the Mariana Trench. The Sirena Deep, which lies miles kilometers to the east of Challenger Deep, is a bruising 35, feet deep 10, m. By comparison, Mount Everest stands at 29, feet 8, m above sea level, meaning the deepest part of the Mariana Trench is 7, feet 2, m deeper than Everest is tall.

The Mariana Trench is 1, miles 2, kilometers long — more than five times the length of the Grand Canyon. However, the narrow trench averages only 43 miles 69 km wide. Because Guam is a U. Commonwealth, the United States has jurisdiction over the Mariana Trench. In , President George W. Bush established the Mariana Trench Marine National Monument, which created a protected marine reserve for the approximately , square miles , square km of seafloor and waters surrounding the remote islands.

It includes most of the Mariana Trench, 21 underwater volcanoes and areas around three islands. The Mariana Trench was created by the process that occurs in a subduction zone , where two massive slabs of oceanic crust collide.

But scientists say there are many new species awaiting discovery and many unanswered questions about how animals can survive in these extreme conditions. Scientists are particularly interested in microorganisms living in the trenches, which they say could lead to breakthroughs in biomedicine and biotechnology. Additionally, studying rocks from ocean trenches could lead to a better understanding of the earthquakes that create the powerful and devastating tsunamis seen around the Pacific Rim, geologists say.

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