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Why is it necessary to remove sulphur from petroleum products?

a. To reduce the emission of sulphur dioxide in exhaust fumes
b. To increase efficiency of automobiles engines
c. To use sulphur removed from petroleum for commercial purposes
d. To increase the life span of engine silencers

Biology - Main Course Book

Chapter 16. Environmental Issues


It is option a in your question
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To reduce the emission of sulphur dioxide in exhaust fumes
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