A nuclear submarine went 400 ft below the polar ice cap. then it went across the Atlantic ocean at 150 ft below the sea level. What integer represents the submarine's depth in the Atlantic ocean (in feet)?
The average depth of the world's oceans is 3,790 meters, or 12,400 feet, or 2 1⁄3 miles. There is no light, and the pressure is 370 atmospheres, or 5,400 pounds per square inch! The average depth of the Atlantic Ocean is ...
