The puffed up appearance of dough in idli is due to the production of CO₂ gas. The microbes responsible are mainly

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fungi

yeast

bacteria

LAB

answer is C.

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Detailed Solution

The dough, which is used for making foods such as dosa and idli is also fermented by bacteria. The puffed-up appearance of dough is due to the production of CO₂ gas.

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