zjbrown zjbrown

26-02-2018
Physics

contestada

Phosphorus is:

found free in the atmosphere
returned to the soil by rhizobium
added to the soil through weathering
usually very abundant in an ecosystem

Respuesta :

PERSON1231231231 PERSON1231231231

09-03-2018

im not 100% sure but my best guess would be , b. returned to the soil by rhizobnium

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