14. The Ability To Grow Things
While we could bring our own plants to have on our new planet, it is pretty clear that a planet should have its own plants too. If it doesn’t, that should be considered eye-opening. One of the things a planet needs for humans to even be close to coming here for a long-term stay is the ability to at least grow plants.
Even if the planet does not have its own for some reason, as long as growth is possible, we’re good. We can always supply the planet with plants. These can be useful food resources for us but also the animals we might need to bring with us or hope will already be present.