It's finally raining in Delhi. Petrichor is what they call that distinctive scent when rain fails on dry earth. It contains oils released by plants & geosmin. Humans can detect even 400 parts of geosmin in a trillion, our survival once depended on being able to sniff out rain
— Joy Bhattacharjya (@joybhattacharj) Jul 13, 2021
via Twitter https://twitter.com/joybhattacharj
July 13, 2021 at 09:30AM
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