Key Stage 3 (KS3) Energy Practice Test

Solar energy is classified as a renewable energy source because it is derived from the sun, which is a constantly replenishing resource. Unlike fossil fuels such as coal and natural gas, which take millions of years to form and can deplete over time, solar energy can be harvested anytime the sun shines. This makes it sustainable and a key player in reducing greenhouse gas emissions and combating climate change. The infrastructure to capture solar energy, such as solar panels, harnesses this abundant source for electricity generation without the risk of running out, highlighting its renewability in the context of global energy needs.