Why are many research centers linked to colleges and universities

All of these sentences include commonly confused homophones. which sentence is correct? you put too much sugar on your breakfast serial. my father grows vegetables and flours in his garden. will someone me untie the knot in my shoelace? when did the captain set sale on his trip to north america?

What is the leading cause if water scarcity throughout much of the world

Students taking a clep exam can earn between college credits, depending on the college's policies.