Researchers uncover ocean iron level mystery

The middle of the Earth's oceans are filled with vast systems of rotating currents known as subtropical gyres. These regions occupy 40% of the Earth's surface and have long been considered remarkably stable biological deserts, with little variation in chemical makeup or the nutrients needed to sustain life.

from Phys.org - latest science and technology news stories https://ift.tt/2LjsDpw

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