How do the oceans provide energy and other raw materials for human use?

Answer 1

There are conventional fuel sources such as petroleum under the ocean floor. Meanwhile, there is enormous potential to capture unconventional energy supplies from the sea, especially by using the power of surface winds and waves and of rising and falling tides to generate electricity. Europeans are leading the way in using these forms of energy. Prospects are increasing for the deep-sea mining of other minerals, including gold, silver, and the copper, cobalt, nickel, and "rare earth" minerals (many of which are used in high-tech devices) held within manganese nodules strewn across much of the world's seafloor.