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Combustion and Flame — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceCombustion and Flame1 Mark
MCQ
Which of the following statements is $NOT$ true?
  • A
    $CO_2$ is the best fire extinguisher.
  • ✓
    Global warming can cause acid rain.
  • C
    Burning of coal and diesel releases sulphur dioxide gas.
  • D
    $L.P.G.$ has higher calorific value than biogas.
✓

Answer

Correct option: B.
Global warming can cause acid rain.
Global warming may cause glaciers to melt, which may lead to a rise in the sea level and thus submerge low lying areas.

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