Ecology is now worldwide favorite subject for students as well as for teachers also. Now a days we are facing a serious problem of degrading our ecosystem,biodiversity loss due to pollution and completion of the natural sources or disturbance of the natural cycles for the replenishment of the natural resources in the ecosystem that's why we need to know about the ecosystem, its working , its replenishment, and its maintenance we can do it by using it in proper way and to tell our students to use it in adequate and limited way.By knowing all these things we can easily maintain our ecosystem and can save our earth.I am thankful to LAP for its immense and big support.Thanks for encouraging.