the reader probably is acquanited with some books of the series: physics for everybody, chemistry for everybody
analytical chemistry is divided into two parts, qualitative analysis and quantitative analysis
geology is a science which treats of the earth. but this definition has to be specified because the earth is studied by many sciences that have their own specific taks and methods of investigation
we usually think of the past as being divided into a historic period and a prehistoric period
in considering the idea of weather typing as a method of extended range forecasting