Answer:
The movement of the plates sometimes leads to earthquakes and tsunamis.
The movement of the plates leads to lot of changes across the globe, and they might be positive or negative, though it depends from which point of view the things are seen.
On the boundaries of the plates, there's constant adjustment deep inside the crust because of their movement. Those adjustments cause parts inside the crust to break, crumble, producing a lot of force, transmitted as quick, strong vibrations, which we know as earthquakes.
The earthquakes can appear on land and in the sea/ocean. Both of them can be devastating and cause a lot of damage, be it human lives, destruction of plants, killing off animals, material damage. The ones in the seas'oceans, also lead to the formation of tsunami, which essentially is a huge, powerful, quick moving waves that wipe out everything on their way.
Explanation:
