📝 Multiple Choice Question
General-science
Which of the following is responsible for the 'Earthly' smell after the first rain
A
Actinomycetes
B
Cyanobacteria
C
Lactobacillus
D
Spirogyra
Explanation
The smell (petrichor) is partly due to 'geosmin', a compound produced by soil-dwelling bacteria called Actinomycetes.
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