Q. What is the name of the rock where scientists recently discovered a gigantic ocean located 700 km beneath the Earth's surface?
Answer:
Ringwoodite rock
Notes: A groundbreaking discovery has unveiled a vast ocean hidden beneath the Earth's crust, located 700 kilometers deep within a rock called ringwoodite. This subterranean reservoir, three times the volume of all surface oceans combined, was detected using a network of 2000 seismographs across the US. Ringwoodite's unique properties, detailed in a 2014 scientific paper, allow it to absorb and trap water, supporting the theory of Earth's internal water origin and reshaping our understanding of the planet's water cycle.