Read the following passage carefully and answer the questions that follow by selecting the most appropriate option from the given alternatives.
In a small village, a government school has become an example of clean energy use. The school uses solar panels to run fans, lights, and even computers. This helps the school save money on electricity bills. The saved money is used to buy books and improve classrooms. The teachers also explain to students how solar energy works and why it is good for the planet. Students learn that solar power does not cause pollution like coal or petrol. The school has also inspired nearby houses to install solar panels. This change has made the village cleaner and more aware of the environment. Even on cloudy days, the solar battery stores enough power to keep the school running. With small steps like this, more schools and homes can help protect nature and build a better future.
What helps the school on cloudy days?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is solar batteries, which store excess energy from solar panels to power the school on cloudy days. This system allows the institution to operate independently of the city's power grid during periods without direct sunlight.