Some energy resources are reliably available at all times, and some are not.
Which row shows three resources all in their correct columns?
Available at all timesNot available at all timesAcoalnuclear power, windBcoal, nuclear powerwindCwind, nuclear powercoalDwindnuclear power, coal \begin{array}{|c|c|c|} \hline & \text{Available at all times} & \text{Not available at all times} \\ \hline \textbf{A} & \text{coal} & \text{nuclear power, wind} \\ \textbf{B} & \text{coal, nuclear power} & \text{wind} \\ \textbf{C} & \text{wind, nuclear power} & \text{coal} \\ \textbf{D} & \text{wind} & \text{nuclear power, coal} \\ \hline \end{array} ABCDAvailable at all timescoalcoal, nuclear powerwind, nuclear powerwindNot available at all timesnuclear power, windwindcoalnuclear power, coalRow A
Row B
Row C
Row D
533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.