however at his desk the signal is consistently dropping yet the device indicates a strong signal what is most likely the cause

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.

answer; i believe the correct answer is prefrontal cortex;

stable food supply,social structure, government,religion,culture/art,technology and writing/language;