Write down the process of evolution of fossil fuels on Earth.

In simple terms, fossils are the remains of once-living animals, or more broadly, organisms, because they can be animals, plants, or even micro-organisms like bacteria. Fossil fuels are combustible geologic deposits of organic materials such as dead plants and animals that have been buried under thousands of feet of sediment. Due to extreme heat and pressure inside the earth's crust, these reserves decomposed over time and were converted to natural gas, coal, and petroleum.

Which fossil fuel produces ammonia when distilled in the absence of air?

Coal is a fossil fuel which produces ammonia when distilled in the absence of air.Coal appears to be the cheapest and most important source of energy. Coal is commonly used in thermal power generation, which aids in the generation of electricity.

Write one example each for fossil fuels in a solid and liquid state.

An example for fossil fuel in solid state is coal and an example for fossil fuel in liquid state is petrol. Coal appears to be the cheapest and most important source of energy. Coal is commonly used in thermal power generation, which aids in the generation of electricity. Petrol is used as a fuel in cars and other vehicles.