I don't get the hate for Ubuntu, it just works. For those who don't care what setup in their system. Especially those who are coming from Windows or MacOS its a good stepping stone.
I would probably would go with 1 and 6. I read an article awhile ago they were used to detect quality of water. I would have the ability to further interpretate what is wrong with the water by talking to the oysters. Might make money along the way and save people/ environment at the same time. As for 6 well is for obvious reason.
I don't get the hate for Ubuntu, it just works. For those who don't care what setup in their system. Especially those who are coming from Windows or MacOS its a good stepping stone.