The "plants are green..." one is very easy for people to mess up. Amusingly, in Caliban's War, the authors did a pretty good job of portraying the botanist character, except one big goof when he's describing the lighting as a thin, pink spectrum that would "kill any plants left under it in less than a week".

Apparently they haven't read all those articles on vertical farms using pinkish LEDs, because that's actually what the best grow lights look like to the human eye. Ooops.