Mandate of heaven, production of silk, and
reverence for ancestors are all characteristics
associated with civilizations in
(1) india (3) greece
(2) china (4) west africa

Mandate of Heaven, production of silk, and reverence for ancestors are all characteristics associated with civilizations in (2) China. The mandate of heaven is an ancient Chinese belief where heaven had granted emperors the right to rule based on their ability to govern. Silk has been produced in China for centuries and ancestors are a big part of Chinese culture.

X= 1.26415 the answer is above