Fossils provide evidence that best helps scientists determine changes over time in (point) the number of species in an environment the number of individuals in each species the emergence or extinction of species the environment .

Fossils provide evidence that best helps scientists determine changes over time in the emergence or extinction of species. By studying the fossil record, scientists can track the appearance and disappearance of different species over millions of years, providing insights into how life on Earth has evolved and changed over time. This information can help researchers understand the patterns and processes of evolution and extinction, and how these have shaped the diversity of species we see today.