Q: What is the term for materials that have been left behind by organisms that once lived?


Read this paragraph and choose the correct option from the provided answers:

Sediments are small fragments of rocks and minerals. Pebbles, sand, silt, and clay are examples of sediments. Sedimentary rocks may include fossils. Fossils are materials left behind by once-living organisms. Fossils can be pieces of the organism, like bones. They can also be traces of the organism, like footprints.

 Choices:

- detritis

- skulls

- bones

- fossils


A:
fossils