'Environment' simply means 'surroundings' and that is why Einstein defined as "Environment is everything that isn't me." The environment is everything that surrounds us, including the air, the land, the oceans, and all livings things, the relationship between human being and his environment has varied from time to time. Over the course of the last century, the relationship between human beings and the planet on which they live changed fundamentally. Man is nature's best promise and worst enemy. There is a close relationship which exists between a healthy environment and economic condition of...