What are three things that changed or happened since the last debate

answer: u elizabeth warren was called out by rivals for a change, joe biden failed to “when this exchange happened, i wrote to a colleague and said, that's the and other candidates were newly aggressive in making their points. unlike in the previous three debates, nobody instigated a fight with mr. biden.

explanation:

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.