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Ar atmospheric pressure, water has a boiling point too high to allow it to be used as the turbine-pushing fluid in an OTEC electric generator. How might the generator be modified to overcome this problem? How might such a modification allow for the production of fresh water from seawater?

What are some disadvantages of producing ethanol by fermenting food biomass?

How does a nonsolar pool cover increase the efficiency of a pool heater?ow does a nonsolar pool cover increase the efficiency of a pool heater?

What is the utility of south-facing windows in northern climates?

Suggest how solar energy might help destroy pathogens in drinking water.

When you have \(p\)-type silicon and \(n\)-type silicon joined together, why don't electrons dislodged by light in the \(n\)-type cross the junction barrier and enter the \(p\)-?????

How is the junction barrier between \(n\)-type and \(p\)-type silicon much like a one-way valve?

What are some major advantages of using seawater to produce hydrogen from electrolysis?

A disadvantage of tidal power is that electricity is generated only when tides are coming in or going out. How might a tidal electric power plant be outfitted so as to bc able to provide a continuous supply of electricity?

How much money would you save per hour by replacing a 100-watt incandescent lightbulb with an equally bright 20 -watt fluorescent bulb? Assume the cost of electricity to be 15 cents per kilowatt-hour.