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(a) What are fossil fuels? Name three fossil fuels. (b) Describe how, fossil fuels were formed.

ScienceClass 8ICSEAnswered 28 Mar 2026
Answer

(a) Fossil fuels are buried flammable geologic deposits of organic substances such as dead plants, and animals that got deposited under several thousand feet of silt. These deposits decayed with the passage of time and got converted to natural gas, coal, and petroleum due to the extreme heat and pressure inside the earth’s crust. They are also known as non-renewable sources of energy as it takes a very long time for it to replenish.

Science · Class 8