The most important human activity leading to the extinction of wildlife is

Explanation

Wildlife refers to all living organisms (terrestrial, aquatic and aerial) living in all possible natural habitats of their own, other than the cultivated plants and domesticated animals. Thus "wildlife" does not exist only in jungles but it includes even the migrating birds, turtles, coral reefs, microorganisms, insects, fishes, etc. The alteration and destruction of natural habitats, often as a result of human activities, are significant drivers of environmental degradation and biodiversity loss. These changes to natural landscapes have a range of negative consequences for ecosystems, wildlife, and the planet as a whole. When natural habitats are altered or destroyed, the plant and animal species that depend on them can lose their homes and food sources. This can lead to a decline in biodiversity, with some species facing extinction.