Question

The most notable trace in the geologic record of human activities is likely to be a(n): a) Fossilized dinosaur footprint. b) Ancient pottery shard. c) Layer of sedimentary rock. d) Layer of radioactive fallout.

Answer 1

The most notable trace in the geologic record of human activities is likely to be:

d) Layer of radioactive fallout.

Radioactive fallout from nuclear testing and accidents has left distinctive markers in sedimentary layers around the world, making it a significant and easily identifiable human-induced geological event.

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