Step-by-step explanation:
The statement that best explains why electricity should be conserved is: "Fossil fuels generate electricity and are limited in supply."
Fossil fuels are a non-renewable resource, which means that they are not replenished over time and will eventually run out. Many power plants rely on fossil fuels such as coal, oil, and natural gas to generate electricity, and as these resources become more scarce, the cost of producing electricity will likely increase. Additionally, burning fossil fuels can have negative environmental impacts, such as air pollution and greenhouse gas emissions, which can contribute to climate change.
By conserving electricity, we can reduce our dependence on fossil fuels and help to ensure that these resources are available for future generations. This can be done through a variety of measures, such as using energy-efficient appliances, reducing unnecessary energy use, and investing in renewable energy sources like solar and wind power.