The Opium Wars

After reading the links below; explain "The Opium Wars". What happened during The Opium Wars? Why are they called The Opium Wars? Who won and why?
Read these links

Film lesson: "Mountains of the Moon"

In the film "Mountains of the Moon", what were some of the hardships that Europeans faced as they explored Africa? Also, why is it strange that the source of the Nile River, (Lake Victoria - the third largest lake in the world) is named after a British Queen? Finally, what was the primary technological advantage that Europeans had over African people? Why were Europeans eventually able to conquer Africa so easily?