Which six states of
the midwest border the great
lakes?

What did photos by the hubble space telescope reveal about the great dark spot?

Using complete sentences, describe the central economic problem facing all humans. why does this require people to make choices? how can this result in opportunity costs?

To be eligible for naturalization, an immigrant must be able to speak, read, write, and understand: a) his name b) poetry c) the constitution d) the english language