if this is for a school assignment, it’s really not appropriate to ask for answers in this forum.
i would suggest visiting a protected sanctuary in your area to see the effects that long-standing drought has on it.
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just for reference, the original poster has started these 3 other threads in the past couple of weeks:
- https://forum.inaturalist.org/t/disturbed-vs-undisturbed-nature/34599
- https://forum.inaturalist.org/t/lawn-nature-invasive-species/34438
- https://forum.inaturalist.org/t/new-england-cottontail-population-dwindling/34329
these all look like variations on a theme.