1. Fast ripening rice PICTURE

3. WHEN 1270 IN SONG DYNASTY

4. IMPORTANCE

5. Multiple Choice Question  During the dynasty, China’s population had been about 60 million. During the song, the farmers of China fed a country of more than 100 million people.Which of the following is the best reason for the dramatic population increase? A.) Song rulers promoted large families in order to increase the size of their armies. B.) Agricultural advances, such as more land being cultivated and fast-ripening rice, made food plentiful. C.) Conquered people from outside territories relocated to China. D.) Medical advancements helped cure deadly diseases and made people healthier.