Most scholars consider which institution within the European Union to be the weakest?

In Brown v. Board of Education, the Supreme Court decided that segregation by race violated which of the following?

a. due process clause b. equal protection clause c. full faith and credit clause d. necessary and proper clause

The number of people in the world living in urban slums in 2010 was estimated by the United Nations to be:

a. 2 billion b. 1.1 billion c. 100 million d. 4 billion