Environmental science
It contains total notes of environmental science of R15 regulation of Btech students.
Environmental science(EVS) all you need is these for your college
In this segment you will have your syllabus , detailed notes, some important stuff, last year question papers ,many presentation,projects and assiment etc. All you need in evsbis this things . It is the collection of all the three years of my seniors which helped me a lot and as this is the detailed notes so you don't have to worry about anything and notes are written in easy to understand language and are in good hand writing and many presentation of my seniors which will help you a lot. You will don't have to worry about anything
Resources and development
This attachment has explanation about resources and how does it help in development. Useful for competitive exams and school level
The lost spring class 12
There are all the questions and answers of the chapter the lost spring.