【技巧】高考地理热点·重点·难点08 人口、城市与乡村

I. Geographical knowledge pointsThe cause of the four great fisheriesThere are four main fisheries in the world: north sea fisheries, hokkaido fisheries, newfoundland fisheries and peru fisheries. The causes of the four major fisheries can be divided into two categories:1 cold + warm. In areas where cold and warm currents intersect, the seawater is disturbed and deep seawater surges, bringing with it large amounts of nutrients and providing suffi