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Assessment
What is the primary role of microorganisms in soil fertility?
Decomposing organic matter
Competing with plants for nutrients
Blocking water absorption
Producing toxins
Which type of microorganisms is most effective in nitrogen fixation?
Fungi
Bacteria
Protozoa
Algae
How do soil microorganisms contribute to the availability of phosphorus in the soil?
By binding phosphorus to form insoluble compounds
By breaking down organic matter to release phosphorus
By producing phosphates from rock minerals
By consuming phosphorus and reducing its concentration
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