There's no puzzle, no riddle, we are on a stationary plane inside an engineered structure. Organized crime has subverted all of society with their bullshit, it's not a case of scientists being mistaken, they're corrupt.
1) If there is an Dome around this so-called flat Earth, then what about climbing the himalayas? Oxygen gets thin at the top, and less breathing air. "Half of the world's oxygen is produced via phytoplankton photosynthesis. The other half is produced via photosynthesis on land by trees, shrubs, grasses, and other plants."
Wouldn't the production of oxygen via photosynthesis, fill up the dome with oxygen, thus at the top of a mountain peak or ground you'd be able to breath fine?
Textbook answer: "This is because the earth's gravity holds the oxygen close to the surface" which makes higher up less oxygen/atmosphere.
If gravity doesn't exist, then why does oxygen like to stay at the ground, and not distribute through out the dome?