It is advisable to keep stirring heap of wastes while burning them. a

1.	It is advisable to keep stirring heap of wastes while burning them. a. Write down two essential situations for the complete burning of fuels. b. How does the stirring help the combustion? Explain. c. Write down two disadvantages, of partial combustion.
Answer» a. To increase the availability of oxygen. i. Increase the surface area exposed to air ii. Make available the temperature needed for burning. b. Sufficient oxygen is made available which increases the rate of combustion. c. Partial combustion pollutes the air by giving excess of smoke, soot, carbon monoxide an carbon dioxide.

It is advisable to keep stirring heap of wastes while burning them. a. Write down two essential situations for the complete burning of fuels. b. How does the stirring help the combustion? Explain. c. Write down two disadvantages, of partial combustion.

Answer»

a. To increase the availability of oxygen.

i. Increase the surface area exposed to air

ii. Make available the temperature needed for burning.

b. Sufficient oxygen is made available which increases the rate of combustion.

c. Partial combustion pollutes the air by giving excess of smoke, soot, carbon monoxide an carbon dioxide.

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It is advisable to keep stirring heap of wastes while burning them. a. Write down two essential situations for the complete burning of fuels. b. How does the stirring help the combustion? Explain. c. Write down two disadvantages, of partial combustion.

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