Earthquakes are scary, but without cracks, we’d have no continental plates moving. The crust is divided into about 15 major plates, all jostling like commuters on a subway. Those cracks are called faults—like the San Andreas Fault, which is basically Earth’s dramatic gossip line.
These faults let heat escape and create mountains. So next time you hike a peak, thank a crack. Faults are friends in disguise. Just not during a 7.0 tremor.
Fun science bonus: Without plate movement, all the carbon on Earth would get locked up in rocks, and we’d suffocate. Thanks, cracks! You’re the unsung heroes of our breathing.
