Question

Which of these is most likely to happen during a solar storm?

hurricanes will flood all coastal locations

electricity grids will produce surplus power

GPS positioning systems will stop functioning

all places on Earth will experience severe thunderstorms

Answer 1

GPS positioning systems will stop functioning

However, I should mention that although this is a possibility, it is still pretty unlikely and there are no statistically favorable chances of massive catastrophe due to solar storms.

Answer 2

Instruments like pagers, cellphone and all other electronic devices stop working,as it involves pushing of strong stream of EM wave(A EM Pulse) causing a jump of electrons in conducting wires inviting a circuit break and malfunctioning of instruments