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Most countries rely heavily on nonrenewable resources for electricity, but some meet a large share from renewables. What fraction of New Zealand's electricity demand is met by hydroelectric power?
AAbout 10%
BAbout 30%
CAbout 67%
DAbout 95%
Answer & Solution
Correct answer: C. About 67%
1. Most countries depend heavily on nonrenewable resources, but hydroelectric power can supply a large share of electricity in countries with the right geography.
2. New Zealand meets about 67% of its electricity demand from hydroelectric power specifically.
3. 10% and 30% are both too low to match the stated figure, and 95% overstates it.
4. This 67% figure stands in clear contrast with countries like the United States, where renewables supply a much smaller share of electricity.
_Source: OpenStax College Physics (CC BY 4.0), Ch 7 "Work, Energy, and Energy Resources", section 7.9 World Energy Use_
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