Based on the estimates of alfred wegener, approximately when did the supercontinent called pangea begin to split apart? select one: a. 430 million years ago b. 300 million years ago c. 180 million years ago d. 50 million years ago

Which of the following are characteristics of effective government leaders? select all that apply : has accumulated enough wealth to operate the government : willingness to accept responsibility : keep a government strong and active : has be a successful in the entertainment field : act as a final point of authority