A-Z Environmental Science focusing on the origins and developments of the various sciences concentrates its focus on environmental science. The environment comprises of the living and non-living components around us, ranging from air, water soil, to plants and animals. Environmental science and management aims to study the environment and the factors affecting it and maintain the balance between nature and man for sustainable development of the human race. The pathways for the degradation and recycling of major classes of biogeochemical are fairly known because of changing techniques and technology. In view of these changing patterns in environmental sciences, the present project has been aimed to provide the students the opportunity to gain the basic understanding of environmental science.