Which of the following is NOT an example of renewable energy?

Coal is not an example of renewable energy because it is a fossil fuel formed from the remains of ancient plants and animals over millions of years. It is extracted from the earth and, when burned, releases high amounts of carbon dioxide and other greenhouse gases that contribute to climate change. Unlike renewable energy sources, which are naturally replenished and have a minimal environmental footprint, coal reserves are finite and can be depleted, leading to various environmental impacts associated with its extraction and use.

In contrast, solar, wind, and hydroelectric power are renewable energy sources. Solar energy harnesses sunlight, wind energy captures the flow of air, and hydroelectric power utilizes flowing water—all of which are naturally replenished and significantly reduce greenhouse gas emissions compared to fossil fuels like coal. This renewable nature of solar, wind, and hydroelectric energy makes them sustainable alternatives in the quest for clean energy solutions.