HOTS Science Primary 6 Interactions

In a forest, a disease kills most of the decomposers in the soil. What is the most likely long-term effect on the producers?

A They will grow slower because there are fewer nutrients in the soil.
B They will grow faster because there is more space.
C They will produce more oxygen.
D They will not be affected by the soil.
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Worked Solution

Step 1: Decomposers break down dead matter into simple nutrients. Step [2-9]: These nutrients are recycled back into the soil for plants (producers). Step [2-9]: If decomposers die, the soil becomes nutrient-poor, slowing plant growth.

Correct answer: They will grow slower because there are fewer nutrients in the soil.

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