Which system of government gives all powers to the national government

Why might the new countries be interested in joining the european union (eu)?

What group has historically made up the largest portion of immigrants in mexico?

Based on this map, which statement about africa’s economic activity is most accurate? a) coastal countries are all members of opec b) economic development is more common with opec nations c) coastal countries have more access to productive resources d) economic development is more common above the sahara desert