Energy efficiency focuses on reducing energy consumption and improving energy utilization, rather than increasing energy production.

Wind energy is generated by harnessing the kinetic energy of moving air.

Energy-efficient appliances consume less energy to perform the same tasks, leading to lower energy bills.

Natural gas is a fossil fuel and is not considered a renewable energy source.

The photovoltaic effect is the process by which certain materials generate an electrical current when exposed to light.

Solar energy is a renewable and sustainable source that does not emit greenhouse gases or other pollutants.

Renewable energy sources such as solar and wind power are intermittent, meaning their availability depends on weather conditions.

Energy efficiency focuses on reducing energy consumption, not increasing energy production.

Geothermal energy is generated by harnessing the heat from the Earth's core.

Nitrogen is not a greenhouse gas, as it does not trap heat in the atmosphere.

Renewable energy sources do not emit greenhouse gases, contributing to a cleaner environment.

Nuclear power plants do not generate electricity from renewable sources and are not considered renewable energy technology.

Hydroelectric energy is generated by harnessing the energy of flowing water.

Using more powerful air conditioners increases energy consumption, which is not an energy-efficient practice.

The safe disposal of radioactive waste is a major challenge associated with nuclear energy.