Q.4 Write the true or false:
4. Burning of wood and coal causes fresh air
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Answered by
1
Answer:
(a) Burning of wood and coal causes pollution of air. (b) A liquid fuel, used in homes is liquefied petroleum gas (LPG) . (c) Fuel must be heated to its before it ignition temperature starts burning
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Answered by
2
Answer:
Your answer is false..
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