How did Vikings get fresh water?

What is the largest man made lake in Britain? What are cold and warm currents? What happend to theTreasure Mountain ride at frontier city? What are tiny marine producers in the upper layer of the ocean called? What general attacked Mexico city through the gulf of Mexico? Is save ganga movement currently working? How do you make Eiffel Tower with a yo yo? Why does the sediment build up in the delta? What part of a lake is most likely to be apohtic? How many people lost there lives in Lexington? Are there famous mountains or rivers or lakes in India? Where can one purchase Reef sandals for men? Where did the Benguela Current get its name? Which is the highest waterfall in worlds? Which mainland countries are washed by the Caribbean sea? What is the narrowest point on the Straight of Gibraltar? What ocean is 80 degrees north latitude and 80? What monument took 20000 people and 22 years? What ocean separates the US from Europe? Is rue des martyrs near seine?