A fossil fuel originates from the remains of ancient organisms (plants and animals) buried and transformed by heat and pressure over millions of years. Key examples include coal, petroleum, and natural gas. They are classified as non-renewable energy sources because their formation takes an immense geological timescale.
Comparing the options against the definition, only Coal is formed from ancient organic matter over geological time, thus qualifying as a fossil fuel. The other options represent renewable energy (Wind, Hydro) or nuclear energy.
The Imperial Forest Research Institute was set up in 1906 in:
Buxa Tiger Reserve is located in:
Which day is celebrated as the World Environment Day?
Which Indian products are issued with eco - mark?
Degradation of global environment has not resulted in one of the following.