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In the soil, which nutrient is enriched by blue-green algae (cyanobacteria)?
 
1. What nutrient is enriched by blue-green algae (cyanobacteria) in the soil?
 
 
2. Which process is associated with blue-green algae in soil enrichment?
 
 3. What is the primary benefit of blue-green algae (cyanobacteria) in soil?