iPad Pro has a minimally larger screen and more cameras than iPad Air. The cut-out for the cameras is therefore different, so if you have an iPad Pro, I would definitely order the corresponding model. The Pro model should also fit well on an Air, but the cut-out for the cameras on the back is probably just a bit too big.

yes, the ipad pro has the big camera in the back, similar to the iphone pro, the ipad air only has a small one. the cutout in the back is also cut out accordingly for the respective camera. so i would really get the ipad air case for the ipad air and the pro case for the ipad pro so that there are no problems and the case also fits 100%.

No idea