Land degredation means when the soil is distroyed and we cannot do any thing on thst land The main 5 reasons for land degredation are1)mining- through mining the soil is degged and because of that the soil is distroyed2)over -irrigation _ over irrigation on the soil also damages the soil as the water flowing from narrow chanals collectes at one area and damage the soil3)over-grazing -in states like gujarat this happans the most as the animals the eats the grass and small plantes that also damages the soil