An air mass is a huge, identifiable body of air possessing a relative homogeneity of temperature and moisture characteristics compared to the air surrounding it. Most air masses have dimensions of hundreds of thousands of square kilometers and are s…
“Agricultural revolution” is a term that has broad meaning to geographers and historians, and may refer to a number of events and processes. Some scholars use the phrase in reference to the Green Revolution (see sidebar) of the latter 20th century, …
There are two connotations to the term “agribusiness.” In a more general sense, the word is used to identify the integrated and diverse components of modern crop production, including the actual grower, but also many others: silo operators; fertiliz…
Agglomeration may have two general meanings to geographers. To urban geographers, it is a term that designates a large urban concentration. To economic geographers, the word refers to the tendency of producers in a given industry to cluster together…
