Index fossils give us clues to? Question 5 options:

the history of the wooly mammoth

the diet of early man

species and paleoenvironments long ago

multicellular organisms

Index fossils help scientists to determine the approximate age of a rock layer and to match that layer up with other rock layers. Fossils give clues about the history of life on Earth, environments, climate, geologic history, and other events of geological importance.

ANSWER

so species and paleoenvironment long ago.

because the animals bones fossilize along with the plants and the water and temps effect the rocks