list any 4 methods can be used of conserving fossil fuels?
1. By minimizing use of fuels like, using bicycle for short distance, avoiding personal vehicles, using fuels with maximum work in minimum usage as CNG, LPG etc.
2. By following triple R ; recycle, reuse and reduce concept.
3.By following renewable energy sources like solar, wind, hydro or geothermal energies etc.
4.By developing fuel efficient and low requirement vehicles and machines which are capable of high production in low requirement of fuels.