A. habitat loss
Habitat loss is widely considered the greatest threat humans pose to biodiversity. It results from activities such as urban development, agriculture, deforestation, and infrastructure expansion, leading to the destruction and fragmentation of ecosystems. This loss of habitat can have devastating effects on species populations and ecosystem health. While invasive species and other factors like genetic mutations can also negatively impact biodiversity, habitat loss is the primary driver behind the decline of many species worldwide.
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