Which describes an achievement of Emperor Yangdi that helped unite China? He built the Great Wall of China to keep out invading Mongol hordes.

He designed a plan for a series of interconnecting canals.

He made Marco Polo an honored guest at the imperial court in Beijing.

He introduced terraced farming to produce more food.

He designed a plan for a series of interconnecting canals.

Explanation:

Emperor Yangdi helped to unite people in China by building a vast network of interconnecting canals. The constructing of the Grand Canal connected the northern and southern regions in China. Through the canal, people were able to connect from the far region and transport goods to the capital and other places. It was also used for supplying food to the northern border armies with food from the south.

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explanation:

these are the geographical features of the gupta empire.

1)it inherited the land owned by the mauryan empire.

2)one obvious difference between the two empires is that the gupta empire was smaller that the mauryan.

3)the gupta empire is located in the northern region of the subcontinent underneath the himalayan and hindu kush mountains.

the gupta empire, marked by extensive inventions and discoveries that contributed to hindu culture, in subjects such as science, technology, engineering, art, dialectic, literature, logic, mathematics, astronomy, religion, and philosophy.

this period was also known as the golden age of india

the answer is a) the proclamation of 1763.