THE ICE AGE
During the earth’s history, there have been many changes in the pattern of climatic regions. The most recent change came about as a result of a fall in temperature over the whole of the earth’s surface, so that the area…
During the earth’s history, there have been many changes in the pattern of climatic regions. The most recent change came about as a result of a fall in temperature over the whole of the earth’s surface, so that the area…