By the ninth century, the _ empire had emerged in eastern Indochina. It developed around agriculture and used __ to store water. To the south, the Srivijaya empire emerged in __Response area . It relied on farming and trade.

Answer 1

By the ninth century, the Khmer empire had emerged in eastern Indochina. It developed around agriculture and used intricate irrigation systems to store water. To the south, the Srivijaya empire emerged in response to trade opportunities. It relied on farming and maritime trade.