When the Europeans redrew African borders for colonial powers, they ignored existing states, natural environments, and ethnic groups. How
did this affect African nations as they gained independence from
European powers?

You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.