Final answer:
Environmental changes can lead to population loss, forced migration, species extinction, and habitat loss.
Step-by-step explanation:
Environmental changes can have several effects on ecosystems and species.
- Population loss of small animals: Habitat destruction and fragmentation can lead to a decrease in animal populations, especially smaller species that rely on specific habitats.
- Forced migration of some populations: When their habitat is destroyed or altered, certain animal populations may be forced to migrate to find suitable habitats.
- Extinction of many species: Habitat loss, pollution, climate change, and other factors can contribute to the extinction of numerous species.
- Loss of habitat: Environmental changes can result in the loss of habitats, which can disrupt ecosystems and threaten the survival of many species.