Answer:
the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.
The theory of evolution look it up and thats where you will get your anwser
Answer:
Polymetallic nodules 4,000 – 6,000 m Nickel, copper, cobalt, and manganese. sorry if I get it wrong.
Explanation:hope I get brainliest:D