You are presented with the question "What falls on the windward side extensive foreland thrust developments?" and the following answer choices: 
- birds
 - rainfall
 - weather
 - planes
 - wave in air
 - alluvial
 - Sediment
 - precipitation

Now knowing that precipitation falls on the windward side of the mountain range and if erosion is rapid, no high mountain range or extensive foreland thrust develops, choose the best answer.


 

        precipitation 