During which geologic epoch do scientists infer
that the earliest grasses first appeared on earth?
(1) holocene
(2) pleistocene
(3) oligocene
(4) eocene

Which of the following statements does not describe shi huangdi? a. shi huangdi was the first emperor of the qin dynasty. b. shihuangdi wrote the lunyu, the most important text in confucianism. c. shihuangdi conquered city-states to unite china. d. shihuangdi began the process of building the great wall of china.