Science (in Latin Scientia, meaning "knowledge" or "understanding") is the efforts to implement the invention, and increased knowledge of the human understanding of how the operation of the physical world surroundings. Through controlled methods, scientists use to observe the signs of expression or of the material and unusual nature to collect data, analyze information to explain how it works, there at the phenomenon of things. One of the ways that test method to simulate natural phenomena under controlled conditions and tested ideas.
Three years have passed since the first edition of Basics of Environmental Science appeared. During
this time new concerns have arisen, the controversy in Britain over the safety and desirability of
genetically modified foods being the most spectacular example. At the same time, our understanding of
other issues has improved as more information about them has been gathered.