. Which of the following is an example of a trace fossil?

ExplanTetrapod footprints, worm trails and the burrows made by clams and arthropods are all trace fossils. Perhaps the most spectacular trace fossils are the huge, three-toed footprints produced by dinosaurs and related archosaurs. These imprints give scientists clues as to how these animals lived.

ation:

answer; software failure, and human error;

the first one you have to divide thenn add then multiply then add but mabey pemdaz pie equals 3.14 duuuhhh