What change did the mongols bring to china

The Mongol Empire under Genghis Khan started the conquest with small-scale raids into Western Xia in 1205 and 1207. By 1279, the Mongol leader Kublai Khan had established the Yuan dynasty in China and crushed the last Song resistance, which marked the onset of all of China under the Mongol Yuan rule.

Explanation:

In the following decades, the Mongols regularly found ways around or through the Wall. In 1279, the Mongols—under the leadership of Kublai Khan, Genghis' grandson—defeated the Song and ruled all of China for the next 100 years (the Yuan Dynasty).

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.