SSC
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hydroelectricity requires water to provide electricity. What situation would have the greatest impact on the ability to produce electricity?
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A lack of business incentives for developing green technology
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The inability to collect fines for excessive use of utilities
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A change in climate resulting in less rainfall
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The inadequate enforcement of laws protecting conservation areas
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Explanation:
Detailed explanation-1: -Hydroelectric generation is not 100% emission-free. Studies have shown that reservoirs created by dammed rivers emit greenhouse gases. Dead plants and other organic materials in the reservoir water decompose and release methane (a strong greenhouse gas) and carbon dioxide into the atmosphere.
Detailed explanation-2: -Water gains potential energy just before it spills over the top of a dam or flows down a hill. The potential energy is converted into kinetic energy as water flows downhill. The water can be used to turn the blades of a turbine to generate electricity, which is distributed to the power plant’s customers.
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