NEET Biology question

Biology Microbes in Human Welfare NEET

A dairy worker notices that milk left exposed to air for a long time at room temperature turns sour and thickens without any curd being deliberately added. This is most likely due to the activity of

(A)Methanogens naturally present in the air
(B)Naturally occurring lactic acid bacteria contaminating the milkCorrect
(C)Trichoderma spores settling on the milk
(D)Baculoviruses present in the milk

Answer: (B)

Solution

Naturally occurring lactic acid bacteria can contaminate exposed milk and ferment its lactose to lactic

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Question ID VK-124376