1. Most likely, no. Since with all the continents connected, there would be no such need of a vehicle like a plane. Hence, airplanes would have never existed.
2. Yes, as the earth gets older, more mountains will form. meaning, the continents will soon shift because of the plate tectonics constantly shifting overtime.
P.S
I would really appreciate if you give this answer a BRAINLY, it's fine if you don't want to. A simple thank you is enough.
