Environment Environment : Environment is our besic life support system. It provides the air we breath, the water we drink, the food we eat and the land where we live. Biotic : The world of living organisms. e.g. plants and animals. Abiotic : The world of non living elements. e.g. land. WORDS ORIGIN Environment : French word Environner meaning " neighbourhood ". Domains of the Environment Lithosphere : The solid crust or the hard crust or the hard top layer of the earth. It is made up rocks and minerals and coverd by a thin layer of soil. Hydrosphere : It comprises varios sousces of water and different types of water bodies like river, , lakes , seas , oceans , etc. Atmosphere : Our earth is surrounded by a huge blanket of air called atmosphere. Biosphere : It is narrow zone of the earth wher