The document discusses several key threats to biodiversity: habitat loss due to deforestation and urbanization, global warming, introduction of exotic species, and overexploitation of species. It provides examples of each threat and argues that protecting habitats, enforcing anti-poaching laws, educating youth, and individual actions like reducing energy usage can help address these threats and protect endangered plants and animals. Biodiversity is important for human health and future advancement, so saving endangered species from extinction is crucial.