Respuesta :

sanjosijan

Answer:

if rhizobium bacteria is added to the soil  the soils nitrogen levels will increase.

this because that the rhizobium bacteria is able to convert atmospheric nitrogen into a more soluble form .plants arent able to absorb nitrogen directly from the air so the rhizobium helps the plants to obtain nitrogen.

mosfara5478

Answer:

The soil will be rich in nitrogen salts and its fertility increases.

Explanation:

the bacteria fixes nitrogen level in the soil by converting nitrogen from the air into nitrogen salts and form nitrates that plants can use easily.

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