You are presented with the question "what can affect the level of a lake" and the following answer choices: 
- boat traffic
 - flooding
 - boat shipping
 - erosion
 - Pollution
 - salinity
 - over fishing
 - spillways

Now knowing that damming a river can cause a lake to form and there is no spillway at Lake Tahoe Dam, choose the best answer.


 

        spillways 