most Soil is the one of important part in our earth. More than 40% our earth consist of soil. There are importances of the soil, but there are many problems which has made by human to the soil. If the soil was polluted, it mean influence to the plants and trees. All plants and trees require certain chemicals and secret others. If tree are too many of one species, the requirements are too much of the same and the soil gets exhausted. Also if there is too much of the chemicals output the soil gets polluted, and so bio diserve system are always the healthiest so agricultures pollute the soil apart from that this kind of farming uses pesticides, herbicides and fertilizers, because to much of one species of also attracts to much of one species of predictors and disease, and is combated with chemicals and too much of the same chemicals are demanded by the soil on the top of this heavy machinery is used which compact the soil raising the salt to be suface, the plough opens the top of the soil and this dries out. Leaving it vulnerable to wind and water erotion( the dust is easily blown or washed away) and all microorganisms needed to build the soil are killed so the destruction of lands is not only pollution.