Why is water added to scallops?

Could you elaborate on the reasoning behind adding water to scallops during the cooking process? Is it to enhance the flavor, texture, or for some other culinary purpose? I'm curious to understand the science behind this practice and how it impacts the final dish. Is there a specific ratio of water to scallops that's recommended, or does it vary depending on the recipe or cooking method? Additionally, are there any potential drawbacks or considerations to keep in mind when using this technique?