* The Chinese built dikes to control the annual flooding. * Due to the lack of mannure farmers often used human waste for fertiliser.
the major cause of land polutions are for example ve have some natural minarals like cured oils .when these oil are been refined it helps todamage the land ,there by we say that land polution has occure. secndely the enginers like all these mecanics that repairs car all those west materials which are been drop outside the work shop affects the land and it makes the land to be polluted.