Answer :
This is because, in these new habitats, the nonnative insects might not have natural predators.
What are nonnative insects ?
A type of plant or animal that is not indigenous to a particular area. Non-native species can sometimes cause economic or environmental harm as an invasive species.
Why are nonnative species a threat to biodiversity?
Non-native species can be aggressive or vigorous growers and can overwhelm and out compete the local native species.
Therefore, this is because, in these new habitats, the nonnative insects might not have natural predators.
Hence ,option 3 is correct
To learn more about nonnative species, here
https://brainly.com/question/14188968
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