In many societies in the world, the population is ageing rapidly and this is leading to an unsustainable increase in the cost of public healthcare. A nation’s population should pay for their healthcare provision in the future. To what extent do you agree or disagree?

The supplied diagram illustrates the way in which electricity is produced for domestic purposes. Overall, there are eight steps with two stages, involved in man-made linear process of electricity generation which is starting from manually storing the bio-degradable waste to the supply of power through transformer line to the house. Firstly, human waste such as food scraps and tree leaves are stored inside a steel tank. After preserving the waste for sometime, the compost ferments release methane gas. Then, this gas is directed towards a methane gas storage chamber and thus, to cylindrical compressor for reducing the volume of the gas. Afterwards, the compressed gas is taken to combustion engine. Furthermore, the combustion engine uses methane gas for ignition and mechanical energy is produced by it, that helps to rotate generators. The electrical energy comes out of generator is stored inside the electrical storage battery. Ultimately, the power lines from battery with the aid of transformer, supply the electricity to the domestic area.