POLLUTANTS AND THEIR EFFECTS ON ENVIRONMENT
……
Search results for: "dioxide"
FOREST
Forest means the area covered by the trees. There should be forest on about 25% of land of any country. Which plays an important role……
causes of lungs cancer and their effect on body
Lungs are the special part of human body. The function of lungs are respiration. Respiration is a process in which oxygen is intake……
