Milk is converted into curd by the process of fermentation. Curd is very healthy for the human body.
Situation 1: Curd make with the help of bacteria called Lactobacillus
Situation 2: Add yogurt to lukewarm milk.
Which of the following situation/ situations are required for curd making?
1
All the above situation
2
Only situation 2 follows
3
None of above situation
4
Only situation 1 follows