Below the sea near the Atlantic Ridge ( roam, roams) rare species of bioluminescent fish.
bioluminescent = glow from living things
28. In ancient forests around the Smokey Mountains ( dwell, dwells ) an ancestor of modern ferns.
29. In a cave forgotten for thousands of years ( lie, lies ) an stone blade made by a Neanderthal Man.
30. From nations all over the world ( come, comes) representatives to the United Nations.