Why is it important to prevent soil erosion?

Answer 1

Soil erosion is a naturally occurring process - just because it happens does not necessarily make it something that should be prevented. It's what you intend the soil to be used for or if there are any consequences to soil eroding in the area that makes prevention important.

Soil may be used as a support for something - earthen dams for instance. If the soil that composes a dam starts to erode, it strongly affects the integrity of that dam. If too much damage were to occur and the dam's reservoir were to fill up too much, the erosion would make it much easier for the dam to break, potentially flooding the downstream area and causing damage to property, infrastrucute, and possible loss of life.

Similarly, if soil erosion were to occur over time, it could change the course of a river or stream - this could be very bad if the new stream flows over a town or series of roads. In the same way that soil erosion could lead to disasterous effects for things we consider convenient, it's just as possible that the events that take place after excessive erosion could involve damage to the habitats or eradication of animals in the area.

Or perhaps you have a garden you want to keep looking nice! The nice part about erosion is that it takes a little more time for something serious to occur - even though erosion may be hidden under the ground. This is called a sink hole when exposed - you wouldn't want these to develop underneath a street or sewage drain since that soil acts as a suppport for keeping such things in place!

Answer 2

Because it is the main part where plants grow. And if we don't have plants or trees that give us oxygen, we could very easily die! :'(

Answer 3

Because that way we can get oxygen.