What is the largest source of phosphorus on earth?

1 Answer
May 17, 2016

Answer:

The largest source of phosphorus on earth is found in sediments and rocks.

Explanation:

The largest source or reservoir of phosphorus on earth is sediments, typically sedimentary rocks. There is a significant amount of phosphorous is ocean sediments as well.

http://ehp.niehs.nih.gov/119-a208/

Phosphorous can also be found in plants, animals, and the soil.

The phosphorous cycle differs from the carbon and nitrogen cycles because the greatest store for the latter two biogeochemical cycles is the atmosphere.