Which resource can be used over and over again, hence making them unlimited?

Which resource can be used over and over again, hence making them unlimited?

کون سا وسیلہ بار بار استعمال کیا جا سکتا ہے، اس لیے انہیں لامحدود بنا دیا جاتا ہے؟
Explanation
  • Renewable sources, such as solar energy, wind energy, hydro energy, and biomass, are sustainable and can be replenished naturally.
  • They can be used over and over again, making them virtually unlimited.