The largest threat to global biodiversity, as identified by the IUCN, is:

Question

Quizplus · Accepted Answer

Loss of habitat is currently the largest threat to global biodiversity. As human populations expand and demand for resources grows, natural habitats are being destroyed or converted for agriculture, urbanization, or other human uses. This fragmentation and destruction of habitat not only directly affects species, but also disrupts ecological processes such as pollination, seed dispersal, and nutrient cycling. This ultimately leads to loss of biodiversity and ecosystem function.

The Largest Threat to Global Biodiversity, as Identified by the IUCN