The correct identification of ways that earthquakes and tsunamis can cause destruction is:
- earthquakes: landslides
- tsunamis: erosion of beaches
You could also note:
- earthquakes: open up large cracks in Earth’s crust
- tsunamis: move blocks of land up or down
Both sets accurately reflect the destructive effects that earthquakes and tsunamis can have. However, the primary destructive mechanisms typically associated with each are more clearly captured in the first two points mentioned.