What causes the pleasant "smell of rain?"
Correct answer: A combination of bacterial spores, oils, and acidity
Timoteo
I'm surprised they said all that and didn't give the name of this pleasant sensation - petrichor.
J
Great. Now the next time it rains, I’ll be thinking of bacteria, oil, and acid.
Republic of China
This is caused from the build up of plant oils being released into the air and combining with a substance called geosmin. Geosmin is a compound given off by a type of soil bacteria called actinomycetes.
Mori
this description was ridiculously roundabout, and as Timoteo said...they didnt even give it it's name