Why is water so important for earthworms?

Water is essential for earthworms because it aids in their respiration; they absorb oxygen through their moist skin. It also facilitates the movement of nutrients and waste within their bodies, as earthworms rely on a moist environment to maintain their physiological processes. Additionally, water helps in the decomposition of organic matter in the soil, providing earthworms with a vital food source. Overall, water is crucial for their survival and role in soil health.