In what two ways were the tang and song dynasties of china similar? they jointly built the grand canal. they were economically strong. they had weak military forces. they ruled for about 300 years. they discouraged buddhist ideas.

They were both economically strong and they both ruled for about 300 years.

Explanation:

They were economically strong–

Both dynasties are considered as golden ages and high points in Chinese civilization by historians.

They ruled for about 300 years–

The Tang Dynasty ruled from 618 A.D.- 907 A.D. (289 years)

The Song Dynasty ruled from 960 A.D. - 1279 A.D. (319 years)

They ruled for about 300 years.

              They were economically strong.

Explanation:

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