Flash floods, hailstorms
hope this helped
Her conclusion is invalid because using sand instead of soil slows down plant growth. Fertilizer, on its own, does not 'greatly' increase the size of the plant.
The correct way to do this experiment would be to keep all other parameters same, except the fertilizer. This will give her accurate results.
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An important role in fungi in an ecosystem is B. Breakind down dead organisms.
I believe electromagnetic force