Final answer:
Prehistoric archaeologists work with artifacts and fossils to understand ancient human cultures and their relationship with the environment.
Step-by-step explanation:
Prehistoric archaeologists work with artifacts and fossils to understand how ancient human cultures developed and interacted with their environment. They excavate sites using careful methods to uncover objects made by humans, such as tools and pottery, as well as the remains of organisms. They also study ecofacts, like seeds and animal bones, to examine the historical relationship between plants, animals, and humans. By studying these materials, archaeologists can gain insights into how people lived in the past and how they adapted to their surroundings.