Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way down into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.
Bioenergy and the challenge of the "circular economy" From global warming to the flow of migrants, today's the most important topics require a more and more global approach.
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Peace Education 101 . COM. World Peace Newsletter - The greatest thing in life is internal peace, external peace and global peace! Peace is the key ingredient to Happiness.
The pre-history of Sri Lanka goes back 125,000 years and possibly even as far back as 500,000 years. The era spans the Palaeolithic, Mesolithic and early Iron Ages.Among the Paleolithic human settlements discovered in Sri Lanka, Pahiyangala (named after the Chinese traveller monk Faxian), which dates back to 37,000 BP, Batadombalena (28,500 BP) and Belilena (12,000 BP) are the most important.
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