CBSE Class 12
Free courses
Biology
Ecology & Environment
Lesson 1 of 7 • 39 upvotes • 10:21mins
This chapter deals with a water pollution ,its causes and treatment of sewage water.it also includes important terms such as biomagnification,eutrophication.
7 lessons • 1h 19m
Water Pollution
10:21mins
Other Environmental Issues
14:49mins
Loss of Biodiversity and Biodiversity Conservation
11:21mins
Ncert Exercises 1
13:17mins
Ncert Exercises 2
7:20mins
Biodiversity
10:14mins
Air pollution and its control
12:14mins