ntsc vs pal

I'm very new to video, but given the capabilities of the A7Riv and A1, I want to learn more. My cameras are set for PAL, and only offers frame rates of 25, 50 and 100fps. I assume that when the camera is set to NTSC (I haven't tried this) it will offer 24, 30, 60 and 120fps, so that in both...