. A student set up an experiment to study the growth of plants using three different soil types. The student plants a bean seed in each of the three pots. After two months, the student observes the growth of the plants as shown. What can a student conclude from this experiment?
1)Earthworm increases the fertility of the soil
2)Compact soil increases the number of nutrients in the soi
3)Earthworms restrict the growth of the plant by consuming them
4)Loosened soil with no earthworm allows maximum growth of the plant.
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Answer:
Option 3
Explanation:
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