Fact 1: Wind causes erosion.

Fact 2: Erosion causes destruction of aquatic habitats due to siltation and flooding.

Given the two facts above, answer the question "Which normal weather event can threaten aquatic habitats? " with the following options: 
- wind
 - oil
 - cold
 - Winter
 - hail
 - snow
 - fire
 - sleet


 

 wind        