Which layer of the Earth's interior is composed of solid iron and nickle?

Lines of longitude are like stripes from the top of the globe down to the bottom virtually slicing the earth like an orange

Which of the following statements is most likely a characteristic of an authoritarian government in africa

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)