The footprint of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils a. body b. amber c. trace d. index

The answer would be:

C. Trace

Here's more about the

Trace fossils are geological records of the behaviors and activities of life in the past. They are indirect evidences or impressions usually preserved in rocks. Examples of trace fossils would be footprints and burrows like those given in the question including root cavities and feeding marks.

i think the answer is composed of atoms