Prepare vermi compost (sand,green wastage,ash,cow dung,Vigd & earth warms) I dig a pit I mixed the above things together & put them in the pit and closed the pit.After one month I took the mixer out & added earth warms,soil and water with that the t compost was prepared I added soil with the vermi compost than took the vermi compost in small spot I planted sapling in these spots.If this is followed by every one then the world will became"ECO FRIENDLY" and every one will be saved from deadly diseases like cancer.