What caused southern Sudan to rebel against northern Sudan? desire to control oil reserves

dislike of the nation’s federal system of government

fear that northern Sudan would establish an Arabic and Islamic state

need for foreign aid that northern Sudan refused to accept

How do you date a sample of rock that you suspect as being one of the earliest on earth

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Which description provides the best objective summary of the article in the passage?