PH-2319
Energy resources
Physics · Secondary 4 · Hard · Energy resources
A country relies on two power stations: a large coal-fired station and a nearby wind farm. On some calm days, the wind farm produces very little power. Which statement about these two energy resources is correct?
- Wind power is more reliable than coal because it is renewable.
- Coal provides a more constant supply than wind because it does not depend on weather.
- Both wind and coal output are equally affected by changes in wind speed.
- Wind power cannot be used at all on calm days, so it is non-renewable.
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