Standard Science Primary 3 Diversity

Jun Jie learned that some bacteria are useful. Which of the following is a use of helpful bacteria?

A Creating black mould on bread
B Causing food poisoning
C Making yogurt
D Causing tooth decay
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Worked Solution

Step 1: Identify that the question asks for a USEFUL function. Step 2: Certain bacteria turn milk into yogurt. Step 3: The other options are harmful or involve fungi.

Correct answer: Making yogurt

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