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Life on Earth uses water as a solvent. What are some other options for life as we don’t know it?
(geologyscience.konfidenciale.com)
Social Experiment. Become Me. What I see, you see.
I've heard liquid methane could be be a possibility.
For further anwers to this question I'll leave a link to a video from Melodysheep:
LIFE BEYOND II: The Museum of Alien Life
Other videos of this channel are also worth watching.