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(1 classification) (2 resources)


Classifications (LC)
Systems of heating (2)

 

Resources

This lesson provides an overview of water use in the industrialized world, including a discussion of the increasing need for conservation as populations grow and water supplies stay roughly constant. Users can listen to...
Take a look inside a typical water heater so you can understand how it works -- and why it sometimes doesn't. Author Marshall Brain gives a fairly comprehensive look at this everyday appliance. Images, videos and text...

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