Based on the Antarctic Treaty, there will be no nuclear activity there, nor will there be any colonization.
If Antarctica never existed, then it never would have existed.
there wouldn't be any tourists in Antarctica
There would never be a hedgehog that naturally lives in Antarctica. It would not be able to survive.
Animals will die
Nothing.
no one lifes there scientists take a 'vacations' there and study things there so no REALLY lives there
we will die in pane
Sea level will rise
Not really. You can make yourself find someone attractive but sometimes things happen, and you get attracted to people you would have told yourself you would never go for. Things happen and you can't choose who you fall in love with. Answer No. You can't.
It would generate a global catastrophe.
Antarctica is too cold and dry for agriculture or for growing anything. Within a few hours, the cactus would freeze.
We would have never discovered emperor penguins, and we would still be a bit confused of how global warming is affecting us today, and we would have never discovered the deep sea species that live in Antarctica, etc.