Question

what happens when the milk is left at room temperature during summer?​

Answer 1

Answer:

When the milk is left open at room temperature, its taste changes and becomes sour due to the breakdown of lactose into lactic acid because of the lactic acid bacteria which also lower the PH of the milk due to the formation of lactic acid.

Answer 2

Answer:

milk turns into curd

Explanation:

as the bacteria bacteriolaccus turns the milk into curd by secreating the enzyme lyzosome