The Formation of Vegetable Mould Through the Action of Worms

question 49

Multiple Choice

The Formation of Vegetable Mould Through the Action of Worms is the title of a classic study by Charles Darwin.What is the true role of earthworms in soil formation?

• A) Earthworms can ingest their weight in soil every day, enriching it with organic material.
• B) Earthworms consume valuable air that is needed by plant roots.
• C) Earthworms are harmful to plant and spread plants root diseases.
• D) All of the choices are correct.
• E) None of the choices are correct.

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