Explores the basics of man's interaction with EarthMuch of the problem can be solved by using less fertilizer, and we have developed technological processes to make sewage water nonpolluting. Where these ... The bad news is that the apparent cost means that nothing much is being done in most of the world. Many people ... 2 A nuclear waste dump receives two elements: A, with a half-life of 30 years, and B, with a half-life of 5 years. The amount ofanbsp;...
|Title||:||People and the Earth|
|Author||:||John James William Rogers, P. Geoffrey Feiss|
|Publisher||:||Cambridge University Press - 1998-03-13|