Passage tombs consist of a stone passageway to a burial chamber, all of which is covered by which of the following?

a. earthen mound

b. pyramid of stone

c. paintings

d. monolith

Above is a picture of one of the most famous discoveries ever to be found in china. answer the following questions: - what does the picture show? - when and where was it discover? - who discovered it and what was he doing when he/she discovered it?