Answer: The Song Dynasty had a large reliance on the scholar gentry class, while the Tang had very little reliance on it. The Song Dynasty didn't expand much while the Tang expanded to practically modern borders. The Tang Dynasty and the Song Dynasty both lasted about 300 years
Explanation: i dont know if that is right
"China had limited trade <span>opportunities with other civilizations, but Egypt had several" would be the best option from the list, since China was more isolated and Egypt at the Nile at its disposal. </span>
Least common multiple (LCM) of 10 and 20 is 20.
