Standard Science Primary 3 Diversity

In which of the following is bacteria useful to humans?

A Giving us a sore throat
B Causing food to turn sour
C Making yogurt
D Making bread rise
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Worked Solution

Step 1: Identify the role of bacteria. Step 2: Certain bacteria turn milk into yogurt. Step 3: Sore throats and sour food are harmful effects.

Correct answer: Making yogurt

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