Acid rain is rain droplets containing sulphuric oxides (SO2 and SO3) and nitrogen dioxide (NO2).
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Environmental biotechnology is a term to describe the scientific engineering of biological systems for environment-friendly processes, such as green manufacturing and clean-up pollution. This technology uses only natural sources as fungi, plants, bacteria, particularly efficient engineered microbes and enzymes in chemical synthesis processes. Read more..
Heavy metal is a term used to describe a subset of a large number of metals and metalloids with high atomic(such as chromium, cadmium, arsenic and mercury), listed in the periodic table of the elements, which have properties of both metals and non-metals. Read more..
The “Invisible hand” is the notion of the economist Adam Smith that efficient utilization of resources arises from a free market of individuals pursuing their own selfish agendas. The theory of firm and consumer rationality is grounded in neoclassical economics and capitalism, stemming from the work of the 18th-century moral philosopher Adam Smith, who emphasized that a free-market economy should occur within a legal and moral framework. Read more..