Question

Choose the answer that is not a fossil.

a petrified T-Rex is found in Montana

a 400-million-year-old fish preserved in rock

a cow skeleton in the desert

dinosaur footprints preserved in mud turned to rock

Answer 1

The last one: dinosaur footprints preserved in mud turned to rock

Fossils have to be physical remains of an animal.

Hope this helps!

Answer 2

(D) a cow skeleton in the desert

Explanation:

Because a petrified T-Rex is considered a fossil, a 400-million-year-old fish preserved in rock is also a fossil and a preserved footprint from a dinosaur is a fossil, the cow is the only one that is not a fossil because it does not remain or an impression of a prehistorical, organism because cows still exist today

Definition of a fossil: the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.