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Invasion of alien species disrupts ecosy...

Invasion of alien species disrupts ecosystem processes. Justify.

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The alien species disrupts ecosystem processes, because
(i) They threaten biodiversity, reduce native herbs, reducing the ecosystem services (benefits).
(ii) They slowly alter ecosystem and microclimate by prolific spreading.
(iii) They also alter the nature of soil and make it unsuitable for nativc species.
(iv) They create human health problems like allergy.
(v) Thus they degrade local environment and they eliminate important local species.
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