Fossil fuels, such as coal, oil, and natural gas, are non-renewable energy sources because they are formed from the remains of ancient plants and animals and take millions of years to replenish.

Renewable energy sources offer several advantages, including reduced greenhouse gas emissions, lower costs in the long run, and increased energy independence by reducing reliance on imported fossil fuels.

Hydropower is a renewable energy source that utilizes the energy of flowing or falling water to generate electricity.

Photovoltaics is the process of converting light energy from the sun into electrical energy using solar cells.

Wind energy is a renewable energy source that harnesses the power of moving air to generate electricity.

The primary environmental impact of fossil fuel use is the release of greenhouse gases, such as carbon dioxide and methane, which contribute to climate change.

Geothermal energy is a renewable energy source that harnesses the heat from the Earth's interior to generate electricity.

Renewable energy sources face challenges such as high initial costs, intermittency (variable availability), and the need for specialized infrastructure.

Biomass is a renewable energy source that utilizes organic matter, such as plants and animal waste, to generate electricity or heat.

Energy efficiency refers to the practice of using energy in a more efficient manner to reduce consumption and waste.

Tidal power is a renewable energy source that harnesses the energy of tides to generate electricity.

Renewable energy sources offer environmental benefits such as reduced air pollution, conservation of natural resources, and mitigation of climate change.

Solar energy is a renewable energy source that harnesses the heat of the sun to generate electricity.

Grid integration refers to the process of connecting renewable energy sources to the existing electrical grid.

Wave power is a renewable energy source that harnesses the energy of ocean waves to generate electricity.