1.

Foam accumulates on a surface of dal' kept for a long time in summer.​

Answer»

ong>Answer:

In summer, the atmospheric TEMPERATURE is favourable for microbial growth. Foodstuffs like 'dal' which KEPT open for a long time favours the growth of MICROBES. The microbes release various gases as byproduct and these gases form foam on the SURFACE of foodstuffs having more water content.



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