This was actually held in 1843 when the first large-scale migration to oregon country take place, and therefore, there was large amoint, just about thousands of pioneer's ready to take on action. They made sure that this scale would decrease.
C the egyptions used the sistrum
Approximately 180 million years
All continents were united in one super continent known as Pangaea. according to Wegener, an observation into the shape and designs of the continents reveals that all the continents were once one large mass. the continent begun to split approximately 180,000 million years ago.
Answer:
I think option B is correct......
