Water Pollution Ppt Class 9. Pollution types and sources notes. Preventing different types of pollutions.
Monet dominguez bs biology 3 2. Because we have given more than 30 ppt in one place. I biodegradable wastes are wastes which are.
Water pollution water pollution occurs when energy and other materials are released into the water contaminating the quality of it for other users.
Eg vegetables fruits pulses cereals cotton jute wool. Water pollution air and water are two most essential ingredients necessary for the existence of life. When water gets polluted it adversely affects all lifeforms that directly or indirectly depend on this source. This video is highly rated by class 9 students and has been viewed 216 times.
