I think it would be diamonds if I'm correct
The North Sea has very important natural resources such as oil and natural gas. Oil is a mixture of organic compounds, mainly hydrocarbons insoluble in water, it is also known as crude oil or simply crude and gas natural which is an important source of fossil energy released by its combustion.
Answer:
A)Crude oil an important source of energy is now extracted from beneath the ocean floor
The answer is in the photo
