Question

How do micro organisms increase soil fertility ? *

a) By fixing nitrogen in the soil

b) By fixing water level in the soil

c) By fixing level of oxygen in the soil

d) By fixing level of CO2 in the soil​

Answer 1

d) by fixing level of co2 in the soil.

Soil microorganisms are responsible for most of the nutrient release from organic matter. When microorganisms decompose organic matter, they use the carbon and nutrients in the organic matter for their own growth. They release excess nutrients into the soil where they can be taken up by plants.

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