Give any two advantage and two disadvantage of natural gas.
Answers
* It has a huge calorific value.
* It is eco friendly... i.e. pollution free.
Disadvantages
* It is a non renewable source of energy.
* It is found only in limited amounts in reserves..... :)
Ecnomy: Natural gas is cheaper compared to other fossil fuels and cheaper than electricity when used for supplying home appliances. Natural gas appliances are also cheaper compared to electrical ones.
Environment: It does not pollute the ground or the underground water because its byproducts are in gaseous form. Another important fact is that natural gas burns without releasing any soot or sulfur dioxide. It also emits 45% less carbon dioxide than coal and 30% less than oil
DISADVANTAGES:
Flammable and Toxic: Natural gas leaks can be proven to be extremely dangerous. Such leaks may be the cause of fire or explosions. The gas itself is extremely toxic when inhaled. The main risk comes from the fact that it is naturally odorless and cannot be detected by smell, unless an odorant has been added to the gas mixture. In the case of an underground leak, the odorant may gradually become weaker and the gas may go undetected.
Environment impact: When natural gas burns, carbon dioxide, monoxide, and other carbon compounds are emitted in the atmosphere contributing to the greenhouse effect. Although it is cleaner than other fossil fuels (oil, coal, etc.) as far as byproducts are concerned, natural gas leaks can become more hazardous since methane is 21 times more dangerous than carbon dioxide.
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