Question

a) What is the main function of the fuel?
b) State two disadvantages of fossil fuel.​

Answer 1

Answer:

A) The function of the fuel system is to store and supply fuel to the engine and cylinder chambers. There, it can be mixed with air, vaporized, and then burned to produce the energy.

B)

• Fossil fuels pollute the environment.

• Fossil fuels are non-renewable and unsustainable.

• Drilling for fossil fuels is a dangerous process.

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Answer 2

Answer:

(a) Some of the main functions of a Fuel are:

    (i) It can be used as a source of energy

   (ii) Fuels are also used in the cells of organisms in a process known as        cellular respiration, where organic molecules are oxidized to release usable energy.

(b) Disadvantages of Fossil Fuels

   (i) They pollute the Environment

  (ii) Fossil fuels release oxides of carbon, nitrogen, sulphur, etc. that cause acid rain, which affects the soil fertility and potable water.

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