When are earthquakes likely to happen?

Earthquakes are likely to happen when the tectonic plates grind against eachother from built up pressure.

Earthquakes occur all the time all over the world, both along plate edges and along faults. Most earthquakes occur along the edge of the oceanic and continental plates. The earth's crust (the outer layer of the planet) is made up of several pieces, called plates.

What have scientists learned about plant behavior by studying the dodder plant