Rewrite the headings using passive forms

1) Tomb of the first Emperor is located near Xiang.2) Over eight thousand soldiers are estimated to exist.3) Army was buried over two thousand years ago.4) Archaeologists were amazed by discovery in 1974.5) Site is protected by UNESCO for future generations.

1)  is located 2)  are estimated3)  was buried 4)  were amazed 5) is protected