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Science & Tech News tagged with poisonous gases

Did Great Salt Lakes Trigger The End-Permian Mass Extinction?
Science & Tech  (tags: permian mass extinction, geology, biology, science, scientists, research, history, animals, wildlife, environment, salt-lakes, extinction, poisonous gases, ancient, climate, concept, discovery, interesting, investigation, news, study, world )

SirRobert
- 264 days ago - msnbc.msn.com
Researchers point to lake-borne poisonous gases as the prime murder weapon leading to 'greatest apocalypse'; the end-permian mass extinction of 250 million years ago.
Persians May Have Gassed Ancient Romans
Science & Tech  (tags: archeology, Persian Empire, roman empire, poisonous gases )

Ingrid
- 333 days ago - spacewar.com
A British archaeologist says soldiers in the Persian Empire may have used poisonous gases on the ancient Roman city of Dura in eastern Syria.
   

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