Scientific evidence is evidence that is backed up by science and you have enough when you can understandingly prove your point or hypothesis
Im am going to say true! hope this helps if i am wrong sorry but if im right your welcome :)
The period of a pendulum is given by

since Karachi is near sea level, g is larger than it is on Mt. Everest. That means the pendulum will have a larger period on Mt. Everest than it would in Karachi.
It is based on the idea that all the present continents were on supercontinent.