You are presented with the question "What causes damage to man-made structures?" and the following answer choices: 
- flooding
 - air quality
 - animal crossings
 - earthquakes
 - toxins
 - trees bending
 - influenza
 - Pesticides

Now knowing that an earthquake causes the ground to shake and examples include damage to man-made structures, ground failure and felt shaking, choose the best answer.


 

    earthquakes     