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Byju's Answer
Standard VII
Chemistry
Absorption of Water by Soil
The smell of ...
Question

The smell of fresh rain (petrichor) comes from


A

The chemicals released by plants

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B

The chemicals released by bacteria

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C

The chemicals present in soil

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D

All of the above

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Solution

The correct option is B

The chemicals released by bacteria


Petrichor is the term used to describe the earthy scent produced during a rainfall on dry soil. The chemicals released by bacteria in the soil after a spell of fresh rain create the distinctive petrichor scent.


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