Final answer:
Human activities such as habitat alteration, pollution, competition with introduced species, and unrestricted harvest can lead to a decline in biodiversity.
Explanation:
Habitat alteration, severe pollution, competition with introduced species, and unrestricted harvest can all cause biodiversity to decline. These activities can lead to habitat destruction, introduction of invasive species, and overexploitation of natural resources, resulting in a decrease in the variety of species in an ecosystem.
Learn more about Biodiversity loss here:
https://brainly.com/question/37801561
