Rain has a smell caused by the chemical petrichor.
✓ TRUE FACT
Petrichor is the earthy scent released when rain hits dry soil, largely from plant oils and compounds made by soil bacteria. Tiny aerosol droplets can carry these molecules into the air, which is why the smell can spread quickly.
🤯 "Rain has a smell caused by the chemical petrichor. That fresh rain smell has a chemical backstory."