No, they're rock solid!
The plural of geologist is geologists. As in "the geologists are studying the meteor sample".
geologists!!! ... "biologists" not "geologists"...
That would be a geologist? Or if you wanted a name: http://en.wikipedia.org/wiki/List_of_geologists
There are different types of geologists that study oil exploration, mineral exploration and mineral mining. There are also engineering geologists.
Geologists don't use rocks, they study them.
Rocks are to geologists as stars are to astronomers.
I'm so lonely. That dog is lonely! I'm not lonely..
Lonely- by Akon
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Lonely is an adjective or describing word. Therefore, it doesn't have a plural. See examples; I am lonely You are lonely They are lonely The plural (they) doesn't require a variation on the word lonely.
Geologists are often employed in oil and gas industries.
Oceanographers study the ocean. Geologists study the earth.