Standard Science Primary 3 Diversity

Which of the following is a way that bacteria are helpful to humans?

A They help to make yogurt and cheese.
B They cause food to go bad.
C They make the air fresh.
D They cause skin rashes.
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Worked Solution

Step 1: Distinguish between harmful and helpful bacteria. Step 2: Certain bacteria are used in the food industry for fermentation. Step 3: Yogurt and cheese are produced using helpful bacteria.

Correct answer: They help to make yogurt and cheese.

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