Q. Which of the following trenches is not located in the Pacific Ocean?
Answer: Java Trench
Notes: The Java Trench—contrary to the other options—is not situated within the Pacific Ocean; it actually lies within the Indian Ocean. Trenches are long, narrow, steep-sided depressions in the ocean floor, most of which culminate in the Pacific Ocean. However, the Java Trench, which is considered the deepest point in the Indian Ocean, makes for a notable exception to this majority.