At home was several hours' hack-work waiting for him before he went to bed, and after he went to bed there was a volume of Weismann waiting for him, to say nothing of Herbert Spencer's Autobiography, which was as replete for him with romance as any thrilling novel.
The ocean's deepest area is the Mariana Trench (also called the Marianas Trench), which is about 11 km (almost 7 miles, or almost 36,000 feet) deep. The trench is 1,554 miles long and 44 miles wide, and is like the Grand Canyon of the ocean, although it is 120 times larger.
7! The current deepest point on any ocean floor is Challenger Deep (named after HMS Challenger) in the Mariana Trench. That is 10,911 metres (35,797 ft) or 7 miles deep. And â¦ also in the Pacific Ocean. So I don't think the average depth of the Atlantic is 7 miles. The Average Depth of the Atlantic is about 11,810 feet or 2.236 miles. 6 people found this useful.