It is approximately 1,500 miles long. The deepest portion of the Mariana Trench is the Challenger Deep, a narrow portion at the southern end, which is roughly 36,000 feet deep. The water temperature in this area is slightly above freezing. The world's ocean trenches remain largely unexplored due to the immense pressures at such depths.
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About Bing and History. Bing also in past known as ( MSN Live Search, Windows Live Search, MSN Search) is the current decision engine (As Per Microsoft Tag Line) web search engine from Bill Gates's Microsoft Company know for its Windows OS based products. It was unveiled by Microsoft CEO Steve Ballmer on May 28, 2009 at the All Things Digital conference in San Diego.