Some energy resources are reliably available at all times, whereas others are intermittent and not available at all times.
Which row shows three energy resources correctly classified?
Available at all timesNot available at all timesAnuclear powerwind energy, geothermalBwind energy, geothermalnuclear powerCgeothermal, nuclear powerwind energyDwind energynuclear power, geothermal \begin{array}{|c|c|c|} \hline & \text{Available at all times} & \text{Not available at all times} \\ \hline \text{A} & \text{nuclear power} & \text{wind energy, geothermal} \\ \hline \text{B} & \text{wind energy, geothermal} & \text{nuclear power} \\ \hline \text{C} & \text{geothermal, nuclear power} & \text{wind energy} \\ \hline \text{D} & \text{wind energy} & \text{nuclear power, geothermal} \\ \hline \end{array} ABCDAvailable at all timesnuclear powerwind energy, geothermalgeothermal, nuclear powerwind energyNot available at all timeswind energy, geothermalnuclear powerwind energynuclear power, geothermalRow A
Row B
Row C
Row D
142 exam-style questions on CIE IGCSE Physics 1.7.3 Energy resources. Each one has a worked solution and a mark scheme showing where the marks go.