Question

i. Which one of the following is less polluting fuel?
a. Natural gas
b. coal
c. kerosene
d. petrol

Answer 1

Answer:

Natural gas

Explanation:

Natural gas is less polluting fuel.

Natural gas is the cleanest of all the fossil fuels.

Burning natural gas in the place of other fossil fuels emits fewer harmful pollutants

Natural gas produces far lower amounts of sulfur dioxide and nitrous oxides than other fossil fuels

The global warming emissions from Natural gas combustion are much lower than those from coal or oil.

Natural gas emits 50 to 60 percent less carbon dioxide (CO2) when combusted in a new, efficient natural gas power plant compared with emissions from a typical new coal plant

Answer 2

Answer:

Among the following, the less polluting fuel is natural gas  

Explanation:

• CNG is called as Compressed natural Gas. It is obtained by compressing natural gas which is mainly composed of Methane so  burning it produces carbon dioxide and water vapour

• Combustion of natural gas releases very small amounts of these compounds like carbon emissions, nitrogen oxides and sulfur dioxide
• combusting it leaves little or no residue compared to gasoline or diesel

• In CNG-powered cars compared to gasoline-powered vehicles, CO emission is reduced by about 80%

• CNG also produces 45% less hydrocarbons than gasoline.
• Although natural gas also produces greenhouse gases, it is considerably reduced compared to gasoline or diesel.

• This helps reduce the harmful effects of greenhouse gases to the environment particularly through global warming.

Hence it is considered as cleaner fuel which pollutes environment less.