which best describes how Africa was divided into countries? A. Africa was divided up based on long-standing cultural differences. B. Africa was divided up based on a system of African elections C. Africa was divided up with the goal of extending the slave trade. D. Africa was divided up by Europeans who had little concern for African traditions

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.