Lead is a chemical element with the symbol Pb from the Latin plumbum and atomic number It is a heavy metal that is denser than most common materials. Lead is soft and malleable , and also has a relatively low melting point. When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is a relatively unreactive post-transition metal.
Zero pollution action plan for European air, water and soil
The biological or chemical change in the quality of water due to the presence of contaminants in water is called water pollution. Most of this contamination as on date is due to various human activities. In fact, humans are responsible for the mass deaths of whales and other aquatic organisms often swept ashore at different beaches in the world. There is an urgent need to look into the measures to control water pollution although a lot many efforts and schemes have already been announced by the Government in this regard. To make the students aware of this we have prepared short and long essays for students which shall inform them about water pollution and the means to minimise it.
Environmental Pollution Essay
Pollution in China is one aspect of the broader topic of environmental issues in China. Various forms of pollution have increased as China has industrialised , which has caused widespread environmental health problems. The immense growth of the People's Republic of China since the s has resulted in increased soil pollution. Ingestion, contact through skin, diet through the soil-food chain, respiratory intake, and oral intake can deliver the toxic substances to human beings. As China's waste production increases, insufficient efforts to develop capable recycling systems have been attributed to a lack of environmental awareness.
Being aware of pollution is quite mandatory for all the students these days. In order to become a responsible citizen of the future world, every child should know how human activities are leaving an impact on the environment and nature. This topic is quite crucial.