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A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms, sometimes simply as lists of synonyms and antonyms.
The fact that energy can be neither created nor destroyed is called the law of conservation of energy. In the form of the first law of thermodynamics, this states that a closed system's energy is constant unless energy is transferred in or out as work or heat, and that no energy is lost in transfer. The total inflow of energy into a system must ...
Synonym list in cuneiform on a clay tablet, Neo-Assyrian period [1] A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are ...
In addition to being converted, according to the law of conservation of energy, energy is transferable to a different location or object, but it cannot be created or destroyed. The energy in many of its forms may be used in natural processes, or to provide some service to society such as heating, refrigeration , lighting or performing ...
It is nowadays, however, taken to provide the definition of heat via the law of conservation of energy and the definition of work in terms of changes in the external parameters of a system. The original discovery of the law was gradual over a period of perhaps half a century or more, and some early studies were in terms of cyclic processes.
If a temple is to be erected a temple must be destroyed: that is the law – let anyone who can show me a case in which it is not fulfilled! – Friedrich Nietzsche , On the Genealogy of Morality Other nineteenth-century formulations of this idea include Russian anarchist Mikhail Bakunin , who wrote in 1842, "The passion for destruction is a ...
However, Brazil still destroyed 1.3 million hectares in 2019. [7] Brazil is one of several countries that have declared their deforestation a national emergency. [ 69 ] [ 70 ] Paraguay was losing its natural semi-humid forests in the country's western regions at a rate of 15,000 hectares at a randomly studied 2-month period in 2010. [ 71 ]
More than 50% of wetlands in the U.S. have been destroyed in just the last 200 years. [8] Between 60% and 70% of European wetlands have been completely destroyed. [13] In the United Kingdom, there has been an increase in demand for coastal housing and tourism which has caused a decline in marine habitats over the last 60 years.