Final answer:
Water is an abiotic element found in a marine ecosystem. It provides a habitat for organisms and influences ecological processes.
Step-by-step explanation:
An abiotic element found in a marine ecosystem is water. Water is a crucial abiotic factor that provides a habitat for marine organisms, supports their survival, and influences various ecological processes within the ecosystem. It helps maintain temperature, supplies dissolved oxygen, and serves as a medium for transportation and nutrient availability.
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