Photochemical smog is oxidising in nature. — Qualitative and Quantitative Analysis Chemistry Question

💡 Solution & Explanation

Step 1: A renewable resource is one that can be replenished naturally over a relatively short period of time. Step 2: Coal is a fossil fuel formed over millions of years from decaying plant matter under high pressure and temperature, and its rate of consumption far exceeds its rate of natural formation. Step 3: Therefore, coal is a non-renewable source of energy, corresponding to option (b).