* Human activities: These can include things like deforestation, urbanization, pollution, and climate change. Human activities can have a very significant impact on habitats, and they can often cause species to become extinct.
* Introduced species: These are species that are not native to a particular area, and they can often have a negative impact on the native species. Introduced species can compete with native species for resources, such as food and habitat, and they can also transmit diseases.
These are just a few examples of the many events that can change a habitat. It's important to be aware of these events so that we can take steps to protect habitats and the species that live there.