But non-renewable resources generate harmful ... So we need to look for ways to make renewable and sustainable energy resources. For example wind, solar and hydro energy. These are just some ...

You might have used electricity to set an alarm clock, or to make breakfast this morning. Electricity powers lighting, most appliances and devices, and sometimes even showers and heating systems.

for example, are such sources that are constantly being replenished. Renewable energy sources are plentiful and all around us. Fossil fuels - coal, oil and gas - on the other hand, are non ...