In generating electricity, which of the following is considered a non-renewable source of energy?

In generating electricity, a non-renewable source of energy refers to energy sources that are limited in availability and cannot be replenished in a short time frame. The primary non-renewable sources of energy include fossil fuels such as coal, oil, and natural gas. These sources release energy when burned but are depleting and contribute significantly to environmental issues like pollution and climate change.

To summarize, the following are considered non-renewable sources of energy for electricity generation:

1. Coal: A solid fossil fuel that is burned to produce electricity.
2. Natural Gas: A gaseous fossil fuel that is used in power plants to generate electricity.
3. Oil: A liquid fossil fuel that can also be used for electricity generation, although it is less common than coal and natural gas in this context.

In contrast, renewable sources of energy include solar, wind, hydroelectric, and geothermal energy, which are sustainable and can be harnessed indefinitely. Understanding the distinction between these types of energy is crucial for addressing energy sustainability and environmental impacts.