Answer:
Killing off most of the hawks almost caused a complete collapse, but the ecosystem was able to come back from it finally.
Explanation:
A major disturbance that almost caused a total collapse in the ecosystem is the disease outbreak on the plant and animals.
An ecosystem is made of the environment where plant and animals interact and human also lives and run there day to day activities.
It contains all living things include rocks, river and the landscape.
An outbreak of disease can lead to death or reduction in the population of organism and a subsequent increase will normalize the ecosystem.
Therefore, A major disturbance that almost caused a total collapse in the ecosystem is disease outbreak on plant and animal.
Learn more on ecosystem here,
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