Answers

2015-05-27T21:38:42+05:30
A bacteria called lactobaccillus turns milk into curd 
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2015-05-27T22:14:15+05:30
Microorganisms have a vry commertial value in industry.
Curd is prepared by the fermentation of milk by the bacteria, lactobacillus.
In this process, milk sugar is converted into lactic acid. Sour taste of curd is due to lactic acid.

hoped helped u :)))
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