Fact 1: Natural disasters can cause animals to leave an environment.

Fact 2: Goats are herd animals.

Given the two facts above, answer the question "what can be caused to leave an environment by natural disasters?" with the following options: 
- pigeons
 - leeches
 - humans
 - earthquake
 - tornado
 - plants
 - goats
 - death


 

       goats  