As far as I’m aware gravity doesn’t directly act on portals so I don’t think they would experience acceleration from Gravity themselves. Though I was thinking about it more in terms of general relativity rather than Newtonian gravity.

Worm Jesus is about to be crucified.

Theoretically you can if they’re moving in a constant direction at a constant speed a la an inertial frame.

Okay? Nobody said you had to care.

It’s a heavily abused and arbitrary marketing term that doesn’t actually indicate anything about what the food is made of or how it’s made or grown. It also doesn’t indicate anything about how healthy the food is or how good it tastes. At most it’s slightly better for the environment in some areas with some brands when used properly, but even then regulations are too lax and inconsistent worldwide for it to be a trustworthy label.