Question

14. The present day strategy to address environmental issues (such as pollution,
soil erosion, deforestation, rapid industrialisation and urbanisation), is to develop
technology that uses alternate cleaner sources of energy (such as solar energy,
tidal energy, geothermal energy, wind energy etc.). It is advisable to use fuels
like LPG, CNG and biomass, as they are considered cleaner and better fuels. 4
(a) Give full form of LPG.
(b) Why is CNG considered a cleaner fuel ? (Give any one reason).
(c)
State one harmful effect of burning of fuels.
id) "Gaseous fuels are better fuels." Give any one reason in support of this
statement.
VIII-Science & Technology
(12)​

Answer 1

Answer:

1) Liquefied petroleum gas

2) C.N.G (compressed natural gas) is a cleaner

fuel because it causes less pollution by

emitting fewer pollutants like carbon dioxide,

carbon monoxide, sulphur dioxide, nitrogen

dioxide, particulate matter, unburned

hydrocarbons etc.

3) 1.Gaseous fuels are more efficient.