200
is it life in the deep ocean and why
is correct was found at the deepest point of the planet's oceans, the Mariana Trench. Recently in the news because of the trench is 2,550 km long (1,580 miles), and it bottoms out (as far as we can tell) at 10.911 km (10,911 ± 40 m) or 6.831 mi (36,069 ± 131 ft).