I read once that a silicon life form would burst into flame in an oxygen atmosphere! Johnny Horta Torch!
Speaking of Shore Leave, my theory is that there IS no “keeper”. The planet is fully automated (and designed for beings more advance than humans) and it gives you whatever you want. When everybody wanted an explanation, the planet gave them one their primitive minds could handle.
Not a bad theory, but in one of the Animated episodes they returned to the planet and found the keeper’s grave. TAS is considered canon these days, right?
My theory is that the shore leave world later became known as Risa.
I read somewhere that a silicon-based life form would be problematic because, assuming the biochemical processes are analogous to carbon-based life forms, the silicon version of carbon dioxide, silicon dioxide, could not be exhaled because it’s a solid (we know it better by the name ‘quartz’). But a silicon-based life form could just poop out its waste silicon dioxide, couldn’t it? I’m not too well-versed on silicon-based biochemistry.
She is a good actress, but I could never warm up to her in that role. One scene I loved, though, was the scene where she was talking to Lt. Commander Data where she inadvertently pronounced his name incorrectly.