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Today we are going to talk about direct alteration of ecosystems.

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The human beings can alter the balance of ecosystems into two ways, direct alteration and indirect alteration.

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Today we are going to talk about direct alteration.

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The direct alteration is the elimination of plants or animals.

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Humans usually have a direct alteration on ecosystems by doing activities that involve natural resources such as hunting, fishing and logging.

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Humans have changed many natural ecosystems, such as forests, into artificial ecosystems, such as farmland or cities.

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Bye!