The greenhouse effect is related to the phenomenon of an increase in average surface temperature known as GLOBAL WARMING; <span>a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.</span>
B. Pax Mongolica. In Pax Mongolica, there is relative peace that happened after Kublai Khan was killed. Resulting to this, the re-opening of Silk Road gave way to transfer to culture, tradition, and trades, and religion.
It is c thank you for asking pls rate
I think it’s B, the great plains are known for amazing farmland
