Fact 1: Erosion of soil has a negative impact on the environment.

Fact 2: Plants keep the soil on the land.

Given the two facts above, answer the question "What sort of impact does erosion have on land?" with the following options: 
- ambiguous
 - negative
 - coastlines
 - Wind
 - helpful
 - positive
 - mechanical
 - forces


 

  negative       