How can ecosystem can be destroyed naturally

Water shortage - we only have a finite supply of fresh drinking water. Food shortage as the lands become barren and the oceans become fishless. Loss of biodiversity as whole species of living things disappear due to deforestation. Pollution will eventually become unmanageable and affect our health.

By overpopulation.

Explanation:

The easiest way for an ecosystem to be destroyed naturally is through overpopulation. This is when a species(typically invasive) overtakes the area. Thus resulting in not enough food for the other organisms, further leading to their migration away from the area or death(due to failure to thrive and lack of resources). Hope this made sense and let me know if you want a further explanation. :)

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