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Assessment
What is one of the key roles of earthworms in soil health?
Aeration of the soil
Producing plant seeds
Providing shade to the soil
Increasing water temperature
How do earthworms contribute to nutrient availability in the soil?
By consuming organic matter and excreting nutrient-rich castings
By storing nutrients in their body
By blocking the passage of nutrients
By taking nutrients from the roots of plants
What impact do earthworms have on soil structure?
They improve soil structure by creating a network of burrows.
They compact the soil tightly.
They make the soil hard and dry.
They prevent soil from being eroded.
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