What are fossil fuel? Give two characteristics of good fuel?

a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. Two characteristics of good fuel are:-

1. It should possess high calorific value.

2. It should have proper ignition temperature.

Explanation:

Fossil fuels include petroleum, coal, oil shales, natural gas, tar sands, and heavy oils. All contain carbon and were formed by geological processes acting on the remains of organic matter produced by photosynthesis. Good fuel should have high caloric value and low ignition temperature, and should be easy to handle and store, not produce harmful gases, and have low ash and moisture content.

answer; i believe the correct answer is (secondary prevention);

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