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प्रश्न
Give scientific reasons.
Foam accumulates on the surface of ‘dal’ kept for a long time in summer.
टीपा लिहा
उत्तर
Summer provides ideal conditions and appropriate temperatures for the growth of bacteria and fungi. At this time, their reproduction occurs very rapidly. On the other hand, infection starts spreading in Dal stored for a long time. In this, the fermentation process begins. As a result, carbon dioxide is formed, and foam appears.
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