Advanced Science Primary 3 Diversity

Why are some bacteria considered useful in nature?

A They help to decompose dead matter.
B They cause diseases in plants.
C They help to make food like yogurt.
D They can only be seen with a microscope.
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Worked Solution

Step 1: Useful bacteria in nature recycle nutrients. Step 2: They break down dead plants and animals. Step 3: This process is called decomposition.

Correct answer: They help to decompose dead matter.

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