Give one take one
In developing countries like Pakistan, we have limited number of resources.We have to utilize these resources wisely.
I have noticed in my university everytime, we are printing new notes for each subject and after completing the semester we just throw them into the dustbin.

This is wastage of time,money,resource and environment.Our this behaviour is one of the cause of deforestation in the country.

We are not just wasting our personal resources but putting the economy of our country low.In other words we are snatching the opportunities for the poor students who want to get education but had no resources.

Solution:
I and my friend decided to develop a center in our University where students can submit their previous semester notes and get notes for the new semester. The seniors will submit their notes here and juniors will be able to get notes for the next semester.
This will not only help the poor students but also help the juniors to get notes where seniors had already mentioned important points.

By lowering the cutting of trees we will also be able to cope with the increasing pollution of Pakistan.