3.The success of cultivation and demonstrations of the series cottons of Zhanjiang Ocean University will make the actuality that cottons can not grow in the torridzone turn into the history.
4.either of two parallels of latitude about 23.5 degrees north and south of the equator representing the points farthest north and south at which the sun can shine directly overhead and constituting the boundaries of the torridzone or tropics.
5.Any of the five regions of the surface of the earth that are loosely divided according to prevailing climate and latitude, including the TorridZone, the North and South Temperate zones, and the North and South Frigid zones.
