Which method of cooking food has the least impact on the environment?
Using a microwave oven powered by electricity from a coal-fired power station.
Using a solar cooker in direct sunlight.
Using a charcoal barbecue grill.
Using a kitchen range stove fueled by natural gas.
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.