How much energy can you generate rowing for ten minutes?

What is the size of a large battle of water? How do you fix a bathtub that is peeling? What was the deepest dive without equipmen? How many laps is 380 meters in a 25 yard pool? Are swimming jammers better than swim briefs? What is the difference between alkalinity and pH? How do you adjust a shallow well pump pressure switch? Why small oil films on water show brilliant colours in a rainy day? When was Childs-Irving Hydroelectric Facilities created? Does the pouch on a pelican help it catch fish or store water? What do you call a you shaped valley that opens on to the sea? Can you make a surfboard out of white wood? What body of water bears the name of a private company that once controlled much of the western Canada? Why wet clothes used for inhalation poisoning? When you row a boat on the pond why does the boat go forward when you are pulling the oars back toward you? Who is kuya bay? How long before you can go surfing with a new nose piercing? Is 2 inch difference of level ground okay for ground swimming pool? Can you leave the pool pump off for 2 days? How To Ask If You Can Wear A Padded Swimsuit?