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How does a soda acid fire extinguisher work?

Important Questions on Air

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Science>Chemistry>Air>Fire Extinguishers
Which of the following is not an example of a biomass energy source?
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Science>Chemistry>Air>Fire Extinguishers
Name two uses biogas.
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Science>Chemistry>Air>Fire Extinguishers
Write down the process of evolution of fossil fuels on Earth.
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Science>Chemistry>Air>Fire Extinguishers
Write a short note on: Nuclear Energy
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Science>Chemistry>Air>Fire Extinguishers
Explain how is nuclear energy generated in power reactors. How is electricity produced from nuclear energy?
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Science>Chemistry>Air>Fire Extinguishers
By what name is biogas popularly known in India?
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Science>Chemistry>Air>Fire Extinguishers
List any three differences between nuclear fission reaction and nuclear fusion reaction.
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Science>Chemistry>Air>Fire Extinguishers
Useful substance in preparation of freezing mixture is 
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Science>Chemistry>Air>Fire Extinguishers
Uranium is used to obtain:
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Science>Chemistry>Air>Fire Extinguishers
Which of the following is not an example of a bio-mass energy source?
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Science>Chemistry>Air>Fire Extinguishers
 State two ways to prevent the rusting of iron.
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Science>Chemistry>Air>Fire Extinguishers

Write names of any two energies produced in ocean.

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Science>Chemistry>Air>Fire Extinguishers

Which of the following are physical changes?

(a) Melting of iron metal        (b) Rusting of iron

(c) Bending of an iron rod     (d) Drawing a wire of iron metal

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Science>Chemistry>Air>Fire Extinguishers
Write the name of two elements used as nuclear energy.
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Science>Chemistry>Air>Fire Extinguishers
Which one of the following is an example of Biomass energy source.
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Science>Chemistry>Air>Fire Extinguishers
Write any four differences between nuclear fusion and nuclear fission.
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Science>Chemistry>Air>Fire Extinguishers
Nowadays bio-diesel is used in transportation vehicles as an alternate to diesel. Write two advantages of this measure.
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Science>Chemistry>Air>Fire Extinguishers

Write down the two benefits of use of solar energy.

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Science>Chemistry>Air>Fire Extinguishers
Explain the principle of working of fire extinguisher.
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Science>Chemistry>Air>Fire Extinguishers
What is a fire extinguisher?